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Mathematics for IGCSE & O level - Mensuration (Section 13 - No. 1)

A circle has a radius of 2 cm. What is its area, rounded to two decimal places? (Use π ≈ 3.14)
6.28 cm²
12.56 cm²
3.14 cm²
4 cm²

解释

Area = πr² = 3.14 * 2² = 12.56 cm²

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