Question

Perimeter of a rectangle is $13cm$. If its width is $\frac{11}{4}cm$, find its length.

Answer 1

Let the length of the rectangle be $l$.

We know that the perimeter of rectangle $=2(l+b)$

Therefore,

$2(l+\frac{11}{4})=13$

$(l+\frac{11}{4})=\frac{13}{2}$

$l=\frac{13}{2}-\frac{11}{4}$

$l=\frac{26-11}{4}$

$l=\frac{15}{4}cm$

Hence, this is the answer.