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Class 7–8 Maths: Circles practice questions

Practise circles for Classes 7 and 8. Try the 3-question quiz below and see each answer explained straight away, then read all 3 worked examples with answers underneath. Free, no sign-up.

Circles: worked examples with answers

These Maths questions are generated, so a fresh set appears every time you press "Practise more questions". Here are some worked examples.

1. A circle has a radius of 7 cm. What is its area? (Use π = 22/7)

   1. A. 154 cm² ✓
   2. B. 49 cm²
   3. C. 176 cm²
   4. D. 44 cm²

   Answer: 154 cm². Area = π × r² = 22/7 × 7 × 7 = 154 cm².

2. A circle has a radius of 14 cm. What is its area? (Use π = 22/7)

   1. A. 44 cm²
   2. B. 616 cm² ✓
   3. C. 88 cm²
   4. D. 196 cm²

   Answer: 616 cm². Area = π × r² = 22/7 × 14 × 14 = 616 cm².

3. A circle has a radius of 21 cm. What is its area? (Use π = 22/7)

   1. A. 132 cm²
   2. B. 441 cm²
   3. C. 1408 cm²
   4. D. 1386 cm² ✓

   Answer: 1386 cm². Area = π × r² = 22/7 × 21 × 21 = 1386 cm².

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