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Mathematics for IGCSE & O level - Mensuration (Section 5 - No. 5)

If a circle has a radius of 3.5 cm, what is its area?
38.5 cm²
77 cm²
11 cm²
19.25 cm²

Wyjaśnienie

Area = πr²; Area ≈ 3.14 * 3.5² ≈ 38.5 cm²

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