Question

If $P$ denotes perimeter of a rectangle, $l$ denotes its length and $b$ denotes its breadth, find:
$P$, If $l=2m$ and
$b=75cm$

Answer 1

Step: Finding the perimeter

We have:
Length of the rectangle $\left(l\right)=2m$ and
Breadth of the rectangle $\left(b\right)=75cm$
$\because 100cm=1m$
Therefore,
$1cm=\frac{1}{100}m$
And,
$75cm=\frac{1}{100}\times 75=0.75m$

The perimeter of the rectangle is given by:
$=2(\text{Length}+\text{Breadth})$
$=2(2m+0.75m)$
$=2\left(2.75\right)=5.5m$

Therefore, the perimeter of the given rectangle is $5.5m$.