Question

The length of rectangle its width. If its perimeter $54$cm, find its length

Answer 1

Given length of rectangle $=$ width

Let length of rectangle $=x$ ( As per question )

Width of rectangle $=x$

Perimeter $=2(l+b)$

$\Rightarrow 2(x+x)=54$

$\Rightarrow 2\left(2x\right)=54$

$\Rightarrow 4x=54$

$\Rightarrow x=\frac{54}{4}$

$=13.5cm.$

Hence, the answer is $13.5cm.$