Question

A table-top measures $2\text{m}$ by $1\text{m}50\text{cm}$. What is its area in square metres?

Answer 1

• The area $A$ of the rectangle with length $l$ and width $w$ is given by, $A=l\times w$.
• Here the length is $2\text{m}$ that means $l=2$ and the width is $1\text{m}50\text{cm}$ which is equivalent to $1.5\text{m}$, that gives $w=1.5$.

Step 1: Substitute $2$ for $l$ and $1.5$ for $w$ into $A=l\times w$ and find the area of the rectangle.

$\begin{array}{rcl}A& =& 2\times 1.5\\ & =& 3{\text{m}}^2\end{array}$

Hence, the area of the rectangle is $3{\text{m}}^2$.