Question

If $P$ denoted perimeter of a rectangle, $l$ denotes its length and $b$ denotes its breadth find;
$l$, if $P=38cm$ and $b=7cm$

Answer 1

Given
$P=38cm$ and $b=7cm$
Length of the rectangle $\left(l\right)$ can be calculated as below
Length $\left(l\right)=P/2-b$
$=38/2-7/cm$
We get,
$=19cm-7cm$
$=12cm$
Hence, the length of the rectangle $=12cm$