Question

Find the area of a circle whose diameter is 10 cm

Answer 1

Answer:

Given, diameter = 10 cm

=> radius, r = diameter/2 = 10/2 = 5 cm

Area of a circle

$\pi {r}^{2} \\ = 3.14 \times {5}^{2} \\ = 3.14 \times 25 = 78.5 \: {cm}^{2}$

Thus, area of the circle is 78.5 cm^2.

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