Question

The lengths of sides of two squares are in ratio $8:15$. Find ratio between their perimeters.

Answer 1

Let the side be $s$

so,

$4s$ is equal to $8x$ of first square

and $4s$ is equal to $15x$ in second square

ratio $=8x:15x$

$=8:15$

hence,

we get the ratio of their perimeter is $8:15$