Area of a square wall is $ 1159929 \mathrm{~m}^{2} $. Find the side of the wall and also the cost of painting the wall at Rs.10 per $m^2$.

Given:

Area of a square wall is \( 1159929 \mathrm{~m}^{2} \).

The cost of painting the wall $=$ Rs.10 per $m^2$.

To do:

We have to find the side of the wall and also the cost of painting the wall.
Solution:
 Area of a square of side $s$ is $s^2$

Let the side of the square wall be $a$.

Therefore,

Area of the square wall $=a^2$

$\Rightarrow 1159929=a^2$

$a=\sqrt{1159929}$

$a=\sqrt{(1077)^2}$

$a=1077\ m$

The cost of painting the wall $=Rs.\ 10\times1159929$

$=Rs.\ 11599290$

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Updated on: 10-Oct-2022

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