Question

Find the missing measurement in each of the following:-
$l=8cm$
$A=72sqcm$ $b=?$

Answer 1

Given : l = 8 cm A = 72 $c{m}^2$

to find : b

$a=l\times b$ $\Rightarrow$ $b=\frac{A}{l}$

$b=\frac{72c{m}^2}{8cm}=9$ cm