Question

The ratio of two adjacent sides of a parallelogram is $5:4$. Its perimeter is $8\text{cm}$ then, what is the length of the adjacent sides.

Answer 1

Let the length be $5x$

Let the breadth be $4x$

$\Rightarrow$ Perimeter $=2(5x+4x)$

$\Rightarrow$ $8=2\left(9x\right)$

$\Rightarrow$ $4=9x$

$\therefore$ $x=0.44$

$\Rightarrow$ Length $=5x=5\times 0.44=2.2\text{cm}$

$\Rightarrow$ Breadth $4x=4\times 0.44=1.8\text{cm}$

$\therefore$ The length of the adjacent sides are $2.2\text{cm}$ and $1.8\text{cm}$