{
  "title": "Area of General Quadrilateral (Mensuration) - Grade 7 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Find area of quadrilateral with diagonal 10cm, heights 4cm & 6cm: 📐",
      "options": { "A": "48cm²", "B": "49cm²", "C": "50cm²", "D": "51cm²" },
      "correct_answer": "C"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "Area of quadrilateral: diagonal=12cm, heights=5cm & 7cm: 🟦",
      "options": { "A": "70cm²", "B": "71cm²", "C": "72cm²", "D": "73cm²" },
      "correct_answer": "C"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "Find area: diagonal=8cm, heights=3cm & 5cm: 📏",
      "options": { "A": "30cm²", "B": "31cm²", "C": "32cm²", "D": "33cm²" },
      "correct_answer": "C"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "Area of quadrilateral: diagonal=14cm, heights=6cm & 8cm: 🎯",
      "options": { "A": "96cm²", "B": "97cm²", "C": "98cm²", "D": "99cm²" },
      "correct_answer": "C"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Find area: diagonal=9cm, heights=4cm & 7cm: 🔳",
      "options": {
        "A": "48.5cm²",
        "B": "49.5cm²",
        "C": "50.5cm²",
        "D": "51.5cm²"
      },
      "correct_answer": "B"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Area of quadrilateral: diagonal=11cm, heights=5cm & 9cm: 🧩",
      "options": { "A": "75cm²", "B": "76cm²", "C": "77cm²", "D": "78cm²" },
      "correct_answer": "C"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Find area: diagonal=13cm, heights=7cm & 11cm: 📊",
      "options": { "A": "115cm²", "B": "116cm²", "C": "117cm²", "D": "118cm²" },
      "correct_answer": "C"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "Area of quadrilateral: diagonal=15cm, heights=8cm & 12cm: ⚡",
      "options": { "A": "148cm²", "B": "149cm²", "C": "150cm²", "D": "151cm²" },
      "correct_answer": "C"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "Find area: diagonal=16cm, heights=9cm & 13cm: 🎲",
      "options": { "A": "173cm²", "B": "174cm²", "C": "175cm²", "D": "176cm²" },
      "correct_answer": "D"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Area of quadrilateral: diagonal=18cm, heights=10cm & 14cm: 🔄",
      "options": { "A": "214cm²", "B": "215cm²", "C": "216cm²", "D": "217cm²" },
      "correct_answer": "C"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Find area: diagonal=20cm, heights=11cm & 15cm: 🏆",
      "options": { "A": "258cm²", "B": "259cm²", "C": "260cm²", "D": "261cm²" },
      "correct_answer": "C"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "Area of quadrilateral: diagonal=22cm, heights=12cm & 16cm: 🟩",
      "options": { "A": "306cm²", "B": "307cm²", "C": "308cm²", "D": "309cm²" },
      "correct_answer": "C"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Find area: diagonal=24cm, heights=13cm & 17cm: 📐",
      "options": { "A": "358cm²", "B": "359cm²", "C": "360cm²", "D": "361cm²" },
      "correct_answer": "C"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "Area of quadrilateral: diagonal=26cm, heights=14cm & 18cm: 🔺",
      "options": { "A": "414cm²", "B": "415cm²", "C": "416cm²", "D": "417cm²" },
      "correct_answer": "C"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Find area: diagonal=28cm, heights=15cm & 19cm: 🎪",
      "options": { "A": "474cm²", "B": "475cm²", "C": "476cm²", "D": "477cm²" },
      "correct_answer": "C"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "Area of quadrilateral: diagonal=30cm, heights=16cm & 20cm: ⭐",
      "options": { "A": "538cm²", "B": "539cm²", "C": "540cm²", "D": "541cm²" },
      "correct_answer": "C"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Find area: diagonal=32cm, heights=17cm & 21cm: 🔳",
      "options": { "A": "606cm²", "B": "607cm²", "C": "608cm²", "D": "609cm²" },
      "correct_answer": "C"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "Area of quadrilateral: diagonal=34cm, heights=18cm & 22cm: 🧮",
      "options": { "A": "678cm²", "B": "679cm²", "C": "680cm²", "D": "681cm²" },
      "correct_answer": "C"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Find area: diagonal=36cm, heights=19cm & 23cm: 📏",
      "options": { "A": "754cm²", "B": "755cm²", "C": "756cm²", "D": "757cm²" },
      "correct_answer": "C"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "Area of quadrilateral: diagonal=38cm, heights=20cm & 24cm: 🎯",
      "options": { "A": "834cm²", "B": "835cm²", "C": "836cm²", "D": "837cm²" },
      "correct_answer": "C"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "Find area of quadrilateral ABCD: AC=15cm, BM=6cm, DN=9cm: 📐",
      "options": {
        "A": "110.5cm²",
        "B": "111.5cm²",
        "C": "112.5cm²",
        "D": "113.5cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Area of quadrilateral with vertices (0,0), (4,0), (4,3), (0,5): 📊",
      "options": {
        "A": "15.5 units²",
        "B": "16 units²",
        "C": "16.5 units²",
        "D": "17 units²"
      },
      "correct_answer": "B"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "Find area: diagonal=25cm, perpendiculars from opposite vertices=12cm & 18cm: 🎲",
      "options": { "A": "372cm²", "B": "373cm²", "C": "374cm²", "D": "375cm²" },
      "correct_answer": "D"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "Area of quadrilateral: AC=20cm, BM=8cm, DN=14cm: ⚡",
      "options": { "A": "218cm²", "B": "219cm²", "C": "220cm²", "D": "221cm²" },
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "Find area: diagonal=30cm, heights from vertices=15cm & 25cm: 🔄",
      "options": { "A": "598cm²", "B": "599cm²", "C": "600cm²", "D": "601cm²" },
      "correct_answer": "C"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Area of quadrilateral ABCD: AC=18cm, BE=7cm, DF=11cm: 📏",
      "options": { "A": "160cm²", "B": "161cm²", "C": "162cm²", "D": "163cm²" },
      "correct_answer": "C"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "Find area: diagonal=35cm, perpendiculars=20cm & 30cm: 🎯",
      "options": {
        "A": "872.5cm²",
        "B": "873.5cm²",
        "C": "874.5cm²",
        "D": "875cm²"
      },
      "correct_answer": "D"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Area of quadrilateral: AC=22cm, heights=13cm & 19cm: 🟦",
      "options": { "A": "350cm²", "B": "351cm²", "C": "352cm²", "D": "353cm²" },
      "correct_answer": "C"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "Find area: diagonal=40cm, perpendiculars=22cm & 28cm: 📐",
      "options": {
        "A": "998cm²",
        "B": "999cm²",
        "C": "1000cm²",
        "D": "1001cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Area of quadrilateral ABCD: AC=28cm, BM=15cm, DN=21cm: 🔳",
      "options": { "A": "502cm²", "B": "503cm²", "C": "504cm²", "D": "505cm²" },
      "correct_answer": "C"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Find area: diagonal=45cm, heights=24cm & 36cm: 🧩",
      "options": {
        "A": "1348cm²",
        "B": "1349cm²",
        "C": "1350cm²",
        "D": "1351cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "Area of quadrilateral: AC=32cm, perpendiculars=18cm & 26cm: 📊",
      "options": { "A": "702cm²", "B": "703cm²", "C": "704cm²", "D": "705cm²" },
      "correct_answer": "C"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "Find area: diagonal=50cm, heights=27cm & 33cm: ⭐",
      "options": {
        "A": "1498cm²",
        "B": "1499cm²",
        "C": "1500cm²",
        "D": "1501cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Area of quadrilateral ABCD: AC=38cm, BE=20cm, DF=28cm: 🏆",
      "options": { "A": "910cm²", "B": "911cm²", "C": "912cm²", "D": "913cm²" },
      "correct_answer": "C"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "Find area: diagonal=55cm, perpendiculars=30cm & 40cm: 🔄",
      "options": {
        "A": "1922.5cm²",
        "B": "1923.5cm²",
        "C": "1924.5cm²",
        "D": "1925cm²"
      },
      "correct_answer": "D"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Area of quadrilateral: AC=42cm, heights=23cm & 31cm: 🎲",
      "options": {
        "A": "1132cm²",
        "B": "1133cm²",
        "C": "1134cm²",
        "D": "1135cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Find area: diagonal=60cm, perpendiculars=32cm & 48cm: 📏",
      "options": {
        "A": "2398cm²",
        "B": "2399cm²",
        "C": "2400cm²",
        "D": "2401cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Area of quadrilateral ABCD: AC=48cm, BM=25cm, DN=35cm: 🎯",
      "options": {
        "A": "1438cm²",
        "B": "1439cm²",
        "C": "1440cm²",
        "D": "1441cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "Find area: diagonal=65cm, heights=35cm & 45cm: 🔺",
      "options": {
        "A": "2598cm²",
        "B": "2599cm²",
        "C": "2600cm²",
        "D": "2601cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "Area of quadrilateral: AC=52cm, perpendiculars=28cm & 38cm: 📐",
      "options": {
        "A": "1714cm²",
        "B": "1715cm²",
        "C": "1716cm²",
        "D": "1717cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "Find area of cyclic quadrilateral with sides 6cm, 8cm, 12cm, 14cm using Brahmagupta's formula: 🔄",
      "options": {
        "A": "88.8cm²",
        "B": "89.3cm²",
        "C": "89.8cm²",
        "D": "90.3cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Area of quadrilateral with vertices (2,3), (8,4), (9,10), (3,9): 📊",
      "options": {
        "A": "34.5 units²",
        "B": "35 units²",
        "C": "35.5 units²",
        "D": "36 units²"
      },
      "correct_answer": "B"
    },

    {
      "id": 43,
      "difficulty": "hard",
      "question": "Find area of kite with diagonals 24cm and 32cm: 🪁",
      "options": { "A": "382cm²", "B": "383cm²", "C": "384cm²", "D": "385cm²" },
      "correct_answer": "C"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "Area of quadrilateral using coordinates (0,0), (5,0), (6,4), (2,6): 🎯",
      "options": {
        "A": "23 units²",
        "B": "24 units²",
        "C": "25 units²",
        "D": "26 units²"
      },
      "correct_answer": "B"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "Find area of rhombus if diagonals are 18cm and 24cm: ♦️",
      "options": { "A": "214cm²", "B": "215cm²", "C": "216cm²", "D": "217cm²" },
      "correct_answer": "C"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "Area of quadrilateral with vertices (1,1), (7,2), (8,8), (2,7): 📈",
      "options": {
        "A": "34 units²",
        "B": "35 units²",
        "C": "36 units²",
        "D": "37 units²"
      },
      "correct_answer": "B"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Find area of parallelogram with base 15cm and height 12cm: ⬜",
      "options": { "A": "178cm²", "B": "179cm²", "C": "180cm²", "D": "181cm²" },
      "correct_answer": "C"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "Area of quadrilateral using diagonal 40cm and perpendiculars 25cm & 35cm: 📏",
      "options": {
        "A": "1198cm²",
        "B": "1199cm²",
        "C": "1200cm²",
        "D": "1201cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Find area of trapezium (special quadrilateral) with parallel sides 28cm, 20cm and height 16cm: 🔺",
      "options": { "A": "382cm²", "B": "383cm²", "C": "384cm²", "D": "385cm²" },
      "correct_answer": "C"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Area of quadrilateral with vertices (3,2), (9,3), (10,9), (4,8): 🎲",
      "options": {
        "A": "34 units²",
        "B": "35 units²",
        "C": "36 units²",
        "D": "37 units²"
      },
      "correct_answer": "B"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "Find area of kite with diagonals 30cm and 42cm: 🪁",
      "options": { "A": "628cm²", "B": "629cm²", "C": "630cm²", "D": "631cm²" },
      "correct_answer": "C"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "Area of quadrilateral using coordinates (2,2), (8,3), (9,9), (3,8): 📊",
      "options": {
        "A": "34 units²",
        "B": "35 units²",
        "C": "36 units²",
        "D": "37 units²"
      },
      "correct_answer": "B"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "Find area of rhombus if diagonals are 21cm and 28cm: 💎",
      "options": { "A": "293cm²", "B": "294cm²", "C": "295cm²", "D": "296cm²" },
      "correct_answer": "B"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Area of quadrilateral with diagonal 45cm and perpendiculars 27cm & 33cm: ⚡",
      "options": {
        "A": "1348cm²",
        "B": "1349cm²",
        "C": "1350cm²",
        "D": "1351cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "Find area of parallelogram with base 18cm and height 14cm: 🟦",
      "options": { "A": "250cm²", "B": "251cm²", "C": "252cm²", "D": "253cm²" },
      "correct_answer": "C"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Area of quadrilateral using vertices (4,3), (10,4), (11,10), (5,9): 📐",
      "options": {
        "A": "34 units²",
        "B": "35 units²",
        "C": "36 units²",
        "D": "37 units²"
      },
      "correct_answer": "B"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Find area of trapezium with parallel sides 32cm, 24cm and height 18cm: 🔳",
      "options": { "A": "502cm²", "B": "503cm²", "C": "504cm²", "D": "505cm²" },
      "correct_answer": "C"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "Area of kite with diagonals 36cm and 48cm: 🪁",
      "options": { "A": "862cm²", "B": "863cm²", "C": "864cm²", "D": "865cm²" },
      "correct_answer": "C"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Find area of quadrilateral using coordinates (5,4), (11,5), (12,11), (6,10): 🎯",
      "options": {
        "A": "34 units²",
        "B": "35 units²",
        "C": "36 units²",
        "D": "37 units²"
      },
      "correct_answer": "B"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Area of rhombus with diagonals 27cm and 36cm: ♦️",
      "options": { "A": "485cm²", "B": "486cm²", "C": "487cm²", "D": "488cm²" },
      "correct_answer": "B"
    }
  ]
}