Question

Find the area of circle whose diameter is 20 cm.

Answer 1

Answer:

22/7*10*10

314.2......

Step-by-step explanation:

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Answer 2

Answer:

$area \: of \: circle \: = \pi {r}^{2}$

so,

$\: \: \: \: \: \: = \frac{22}{7} \times 10 \times 10$

$\: \: \: \: \: \: = 314.2 {cm}^{2}$