{
  "title": "Area of Circle (Mensuration) - Grade 7 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Find area of circle with radius 7cm: ⭕",
      "options": { "A": "152cm²", "B": "153cm²", "C": "154cm²", "D": "155cm²" },
      "correct_answer": "C"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "Area of circle diameter 14cm: 📏",
      "options": { "A": "152cm²", "B": "153cm²", "C": "154cm²", "D": "155cm²" },
      "correct_answer": "C"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "Find area: radius 10cm (π=3.14): 🎯",
      "options": { "A": "313cm²", "B": "314cm²", "C": "315cm²", "D": "316cm²" },
      "correct_answer": "B"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "Area of circle radius 3.5cm: 🔵",
      "options": {
        "A": "38.48cm²",
        "B": "38.58cm²",
        "C": "38.68cm²",
        "D": "38.78cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Find area: diameter 20cm: ⚪",
      "options": { "A": "313cm²", "B": "314cm²", "C": "315cm²", "D": "316cm²" },
      "correct_answer": "B"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Area of circle radius 5.5cm: 🔘",
      "options": {
        "A": "94.985cm²",
        "B": "95.085cm²",
        "C": "95.185cm²",
        "D": "95.285cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Find area: radius 9cm: 🌀",
      "options": {
        "A": "254.34cm²",
        "B": "254.44cm²",
        "C": "254.54cm²",
        "D": "254.64cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "Area of circle diameter 18cm: 🎡",
      "options": {
        "A": "254.34cm²",
        "B": "254.44cm²",
        "C": "254.54cm²",
        "D": "254.64cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "Find area: radius 12cm: ⭕",
      "options": {
        "A": "452.16cm²",
        "B": "452.26cm²",
        "C": "452.36cm²",
        "D": "452.46cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Area of circle diameter 22cm: 🎯",
      "options": {
        "A": "380.13cm²",
        "B": "380.23cm²",
        "C": "380.33cm²",
        "D": "380.43cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Find area: radius 6.5cm: 🔵",
      "options": {
        "A": "132.73cm²",
        "B": "132.83cm²",
        "C": "132.93cm²",
        "D": "133.03cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "Area of circle diameter 16cm: 📊",
      "options": {
        "A": "200.96cm²",
        "B": "201.06cm²",
        "C": "201.16cm²",
        "D": "201.26cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Find area: radius 8.5cm: 🎲",
      "options": {
        "A": "226.98cm²",
        "B": "227.08cm²",
        "C": "227.18cm²",
        "D": "227.28cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "Area of circle diameter 24cm: ⚪",
      "options": {
        "A": "452.16cm²",
        "B": "452.26cm²",
        "C": "452.36cm²",
        "D": "452.46cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Find area: radius 11cm: 🔘",
      "options": {
        "A": "380.13cm²",
        "B": "380.23cm²",
        "C": "380.33cm²",
        "D": "380.43cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "Area of circle diameter 28cm: 🎪",
      "options": {
        "A": "615.75cm²",
        "B": "615.85cm²",
        "C": "615.95cm²",
        "D": "616.05cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Find area: radius 15cm: 🌀",
      "options": {
        "A": "706.86cm²",
        "B": "706.96cm²",
        "C": "707.06cm²",
        "D": "707.16cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "Area of circle diameter 30cm: ⭐",
      "options": {
        "A": "706.86cm²",
        "B": "706.96cm²",
        "C": "707.06cm²",
        "D": "707.16cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Find area: radius 13.5cm: 🔄",
      "options": {
        "A": "572.56cm²",
        "B": "572.66cm²",
        "C": "572.76cm²",
        "D": "572.86cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "Area of circle diameter 26cm: 🏆",
      "options": {
        "A": "530.93cm²",
        "B": "531.03cm²",
        "C": "531.13cm²",
        "D": "531.23cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "If area = 154cm², find radius: 🔍",
      "options": { "A": "6cm", "B": "6.5cm", "C": "7cm", "D": "7.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Find diameter when area is 314cm²: 📐",
      "options": { "A": "19cm", "B": "19.5cm", "C": "20cm", "D": "20.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "If area = 616cm², find radius: 🧮",
      "options": { "A": "13cm", "B": "13.5cm", "C": "14cm", "D": "14.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "Find diameter when area = 1256cm²: ⚙️",
      "options": { "A": "39cm", "B": "39.5cm", "C": "40cm", "D": "40.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "If area = 78.5cm², find radius: 🔢",
      "options": { "A": "4.5cm", "B": "5cm", "C": "5.5cm", "D": "6cm" },
      "correct_answer": "B"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Find diameter when area = 452.16cm²: 🎯",
      "options": { "A": "23cm", "B": "23.5cm", "C": "24cm", "D": "24.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "If area = 201.06cm², find radius: 📏",
      "options": { "A": "7.5cm", "B": "8cm", "C": "8.5cm", "D": "9cm" },
      "correct_answer": "B"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Find diameter when area = 113.04cm²: 🔄",
      "options": { "A": "11cm", "B": "11.5cm", "C": "12cm", "D": "12.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "If area = 380.13cm², find radius: 🧩",
      "options": { "A": "10.5cm", "B": "11cm", "C": "11.5cm", "D": "12cm" },
      "correct_answer": "B"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Find diameter when area = 706.5cm²: ⚡",
      "options": { "A": "29cm", "B": "29.5cm", "C": "30cm", "D": "30.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "If area = 254.47cm², find radius: 🎲",
      "options": { "A": "8.5cm", "B": "9cm", "C": "9.5cm", "D": "10cm" },
      "correct_answer": "B"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "Find diameter when area = 176.71cm²: ⭕",
      "options": { "A": "14.5cm", "B": "15cm", "C": "15.5cm", "D": "16cm" },
      "correct_answer": "B"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "If area = 530.93cm², find radius: 🔵",
      "options": { "A": "12.5cm", "B": "13cm", "C": "13.5cm", "D": "14cm" },
      "correct_answer": "B"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Find diameter when area = 803.84cm²: 📊",
      "options": { "A": "31.5cm", "B": "32cm", "C": "32.5cm", "D": "33cm" },
      "correct_answer": "B"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "If area = 962.11cm², find radius: 🎡",
      "options": { "A": "17cm", "B": "17.5cm", "C": "18cm", "D": "18.5cm" },
      "correct_answer": "B"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Find diameter when area = 1385.44cm²: 🔘",
      "options": { "A": "41.5cm", "B": "42cm", "C": "42.5cm", "D": "43cm" },
      "correct_answer": "B"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "If area = 615.75cm², find radius: 🌀",
      "options": { "A": "13.5cm", "B": "14cm", "C": "14.5cm", "D": "15cm" },
      "correct_answer": "B"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Find diameter when area = 1661.90cm²: ⚪",
      "options": { "A": "45.5cm", "B": "46cm", "C": "46.5cm", "D": "47cm" },
      "correct_answer": "B"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "If area = 1017.88cm², find radius: 🔄",
      "options": { "A": "17.5cm", "B": "18cm", "C": "18.5cm", "D": "19cm" },
      "correct_answer": "B"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "Find diameter when area = 1963.50cm²: 🎯",
      "options": { "A": "49.5cm", "B": "50cm", "C": "50.5cm", "D": "51cm" },
      "correct_answer": "B"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "Find area of semicircle radius 14cm: 🌙",
      "options": {
        "A": "307.72cm²",
        "B": "307.82cm²",
        "C": "307.92cm²",
        "D": "308.02cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Area of quadrant radius 21cm: 📐",
      "options": {
        "A": "346.36cm²",
        "B": "346.46cm²",
        "C": "346.56cm²",
        "D": "346.66cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "Find area of ring: outer radius 10cm, inner radius 6cm: 💍",
      "options": {
        "A": "200.96cm²",
        "B": "201.06cm²",
        "C": "201.16cm²",
        "D": "201.26cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "Area of three-quarter circle radius 12cm: 🔵",
      "options": {
        "A": "339.12cm²",
        "B": "339.22cm²",
        "C": "339.32cm²",
        "D": "339.42cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "Find area of shaded region: Square 20cm with inscribed circle: 🎯",
      "options": { "A": "86cm²", "B": "87cm²", "C": "88cm²", "D": "89cm²" },
      "correct_answer": "A"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "Area of semicircle diameter 28cm: 🌓",
      "options": {
        "A": "307.72cm²",
        "B": "307.82cm²",
        "C": "307.92cm²",
        "D": "308.02cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Find area of ring: radii 14cm and 7cm: 🔄",
      "options": {
        "A": "461.58cm²",
        "B": "461.68cm²",
        "C": "461.78cm²",
        "D": "461.88cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "Area of quadrant diameter 20cm: 🧩",
      "options": {
        "A": "78.5cm²",
        "B": "78.6cm²",
        "C": "78.7cm²",
        "D": "78.8cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Find area of path 2m wide around circular garden radius 7m: 🛤️",
      "options": {
        "A": "100.48m²",
        "B": "100.58m²",
        "C": "100.68m²",
        "D": "100.78m²"
      },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Area of five-sixths circle radius 18cm: 5️⃣/6️⃣",
      "options": {
        "A": "848.23cm²",
        "B": "848.33cm²",
        "C": "848.43cm²",
        "D": "848.53cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "Find area of shaded region: Circle radius 10cm with square side 14cm inside: 📊",
      "options": {
        "A": "118cm²",
        "B": "117cm²",
        "C": "119cm²",
        "D": "120cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "Area of semicircle radius 25cm: 🌗",
      "options": {
        "A": "981.25cm²",
        "B": "981.35cm²",
        "C": "981.45cm²",
        "D": "981.55cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "Find area of ring: outer diameter 30cm, inner diameter 20cm: 💎",
      "options": {
        "A": "392.7cm²",
        "B": "392.6cm²",
        "C": "392.8cm²",
        "D": "392.5cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Area of three-quarter circle diameter 24cm: 🎲",
      "options": {
        "A": "339.12cm²",
        "B": "339.22cm²",
        "C": "339.32cm²",
        "D": "339.42cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "Find area of circular path 3m wide around pool radius 5m: 🏊",
      "options": {
        "A": "122.46m²",
        "B": "122.56m²",
        "C": "122.66m²",
        "D": "122.76m²"
      },
      "correct_answer": "A"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Area of two-thirds circle radius 15cm: 2️⃣/3️⃣",
      "options": {
        "A": "471cm²",
        "B": "471.1cm²",
        "C": "471.2cm²",
        "D": "471.3cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Find area of shaded region: Big circle radius 14cm with small circle radius 7cm inside: ⭕",
      "options": {
        "A": "461.58cm²",
        "B": "461.68cm²",
        "C": "461.78cm²",
        "D": "461.88cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "Area of quadrant radius 30cm: ⭐",
      "options": {
        "A": "706.86cm²",
        "B": "706.76cm²",
        "C": "706.96cm²",
        "D": "707.06cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Find area of circular race track: Outer radius 50m, inner radius 45m: 🏃",
      "options": {
        "A": "1492.26m²",
        "B": "1492.16m²",
        "C": "1492.36m²",
        "D": "1492.46m²"
      },
      "correct_answer": "A"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Area of five-eighths circle radius 16cm: 5️⃣/8️⃣",
      "options": {
        "A": "502.66cm²",
        "B": "502.56cm²",
        "C": "502.76cm²",
        "D": "502.46cm²"
      },
      "correct_answer": "A"
    }
  ]
}