Question

the side of a triangle are in the ratio 4:5:7 whats the actual side lengths of the lengths of the sides if the perimeter of the triangle is 80 inches

Answer 1

The sides are 20 , 25 , 35

Explanation:

Let's take the numbers in the Ratio form as x is 4:5:7 will become as 4x + 5x + 7x

The perimeter of a Triangle = sum of three sides

= 4x + 5x + 7x = 80 cm

= 16x = 80 cm

= x = 80/16

= x = 5

So 4x = 4 × 5 = 20

5x = 5 × 5 = 25

7x = 7 × 5 = 35