A table-top measures $ 2 \mathrm{~m} $ by $ 1 \mathrm{~m}\ 50 \mathrm{~cm} $. What is its area in square metres?
Given:
A table-top measures $2\ m $ by $1\ m\ 50\ cm$.
To do:
We have to find the area of the table-top in square meters.
Solution:
We know that,
The area of a rectangle with length '$l$' and breadth '$b$' is $l \times b$.
Since,
$1\ m=100\ cm$
This implies,
$1\ cm=\frac{1}{100}\ m$
Breadth $b =1\ m \ 50\ cm$
$=1\times\frac{50}{100}$
$=1.50\ m$
Therefore,
Length $l =2\ m$ and breadth $b =1.50\ m$
The area of the rectangle $ = 2\ m\times1.50\ m$
$=3\ m^2$
The area of the table-top in square meters is $3\ m^2$.
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