Find the area of a circle whose radius is: 21cm. - Vidyadip

Question

Find the area of a circle whose radius is:
21cm.

✓

Answer

Radius of the circle (r) $=21\text{cm}$
$\therefore\text{Area}=\pi\text{r}^2=\frac{22}{7}\times21\times21\text{cm}^2$
$=1386\text{cm}^2$

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