Question

The lengths of sides of a rectangle are $5cm$ and $3.5cm$. Find the ratio of its perimeter to area.

Answer 1

Given length $=5cm$,

breadth $=3.5cm$

Perimeter $=2(\ell +b)$

$=2(5+3.5)$

$=2\times 8.5=17cm$

Area= $\ell \times b$

$=5\times 3.5$

$=17.5c{m}^2$

$\therefore$ ratio required

$=17:17.5$