The circumference of a circle is 31.4 cm. Find the radius and the area of the circle? (Take π = 3.14)

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Solution

Circumference = 2πr = 31.4 cm

2 × 3.14 × r = 31.4

r = 5 cm

Area = 3.14 × 5 × 5 = 78.50 cm²

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