pls answer the 12 question
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Circumference = π × 2r
31.4 = 3.14×2r
r = 31.4/6.28
r = 5cm
Area of circle = πr²
= 3.14×5×5
= 3.14×25
= 78.5 cm²
31.4 = 3.14×2r
r = 31.4/6.28
r = 5cm
Area of circle = πr²
= 3.14×5×5
= 3.14×25
= 78.5 cm²
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