Question

The perimeter of a rectangle with length $13cm$ is $50cm$. Find its breadth?

Answer 1

The perimeter of a rectangle whose length is $l$ and breadth is $b$ is given by $2(l+b).$

So,

$\begin{array}{cc}\text{Perimeter}& =2\left(l+b\right)\\ 50& =2\left(13+b\right)\\ 13+b& =25\\ b& =12cm\end{array}$

Hence, the breadth of the rectangle is equal to $12cm.$