Numerical problem I — task. Science State Board, Class 7.

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A circular disc has a radius

$10\ cm$ . Find the area of the disc in

$m^2$ . (Use

$π\ = 3.14$ ).

[Note: Insert the answer up to three decimal places.]

(

$r$ )

$=$

$m$

The formula for area of circle is

$πr^3$
$πr^2$
$πr$

On substituting the known values in the above formula, we get the area of circular disc as

$m^2$ .

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