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Q.

Choose the correct option:
Find the area of a circle whose radius is 10 cm.

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a

62.8 cm²

b

100 cm²

c

31.4 cm²

d

314 cm²

answer is C.

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Detailed Solution

Given: Radius of circle = 10 cm

Area of circle $= {πr}^{2}$

$= 3.14 \times {(10)}^{2}$

$= 314$ cm²

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