Question

The area of a rectangular piece is $36c{m}^2.$ If its width is $4cm$, find its length.

• A. $10cm$
• B. $9cm$
• C. $8cm$
• D. $7cm$

Answer 1

The correct option is B $9cm$

Given,
Area of a rectangle= $36c{m}^2$,
Width of rectangle= $4cm$.
We know,
Area of a rectangle =$length\times breadth$
$\therefore$ $36=length$ $\times$ 4
$\Rightarrow \frac{36}{4}$ =$length$
$\Rightarrow length=9cm.$