The sides of a triangle are in ratio 5:12:13. What is the length of each side of the triangle if the perimeter of the triangle is 15 inches ?

Question

The sides of a triangle are in ratio 5:12:13. What is the length of each side of the triangle if the perimeter of the triangle is 15 inches ?

Answer 1

One side has length 5x

 

One side has length 12x

 

One side has length 13x

 

5x + 12x + 13x = 15

 

x = 15/(5 + 12 + 13) = 15/30 = 0.5

 

5(0.5) = 2.5

 

12(0.5) = 6

 

13(0.5) = 6.5

 

The lengths of the 3 sides are 2.5, 6, and 6.5

Answer 2

The 15 inches must be distributed in 30 parts (5 + 12 + 13)

15 / 30 = 0.5

Each part is 0.5 inches

5(0.5) = ?

12(0.5) = ?

13(0.5) = ?