Question

The perimeter of a rectangle is $200cm$ the ratio of its sides is $3:5$ find its length and breadth

Answer 1

We have,

The perimeter of rectangle $=200cm$

The ratio of sides is $3:5$.

Let the length of rectangle is $3x$

And the breadth of rectangle is $5x$

We know that the perimeter of rectangle is

$=2(length+breadth)$

Therefore,

$2(3x+5x)=200$

$8x=100$

$x=\frac{25}{2}$

So, the length of rectangle is $=3\times \frac{25}{2}=\frac{75}{2}cm$

The breadth of rectangle is $=5\times \frac{25}{2}=\frac{125}{2}cm$

Hence, this is the answer.