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Mathematics for IGCSE & O level - Mensuration (Section 8 - No. 14)

If a circle has a radius of 6 cm, what is its approximate area?
37.68 cm²
113.04 cm²
18.84 cm²
28.26 cm²

解释

Area = πr² = π * 6² ≈ 113.04 cm²

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