Question

if lenght of a rectangular is 5 times its width and its area is 180 m2 .find its perimeter?

Answer 1

Conditions

if lenght of a rectangular is 5 times its width and its area is 180 m² . find its perimeter?

Solution

Let the width will be $x$, then length is $5x$.

We know that the area is:

$$x - 5x = 180$$

Then

$$x^2 = 36$$ $$x = 6$$

The perimeter is 2 times width + 2 times length:

$$2x + 10x = 12x = 72$$

**Answer: 72**