Question

The length and breadth of a rectangular field are $25\text{m}$ and $10\text{m}$ respectively. What is its perimeter?

• A. $250\text{m}$
• B. $35\text{m}$
• C. $70\text{m}$
• D. $5\text{m}$

Answer 1

The correct option is C

$70\text{m}$

• The perimeter $P$ of the rectangle with length $l$ and width $w$ is given by, $P=2\left(l+w\right)$.

Step 1: Substitute $l=25$ and $w=10$ into the formula $P=2\left(l+w\right)$ and find the perimeter of the rectangle.

$\begin{array}{rcl}P& =& 2\left(25+10\right)\\ & =& 2\left(35\right)\\ & =& 70\text{m}\end{array}$

Hence, the correct option is $\mathit{c}$.