find the circumference of a circle object of diameter 20 CM [use = 3, 14
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Step-by-step explanation:
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diameter = 20 cm
radius r=20/2=10
circumference=2πr=2×3.14×10
=6.28×10
=62.8
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Answered by
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Step-by-step explanation:
Diameter of circle (d) = 20 cm
∴ Circumference = dπ = 20 × 3.14 = 62.8 cm
Radius (r) = d/2 = 10 cm
∴ Area of a circle = πr2= 3.14 × 10 × 10 = 314 cm2
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