The perimeter of a triangle is 42 yards. The first side is 5 yards less than the second side, and the third side is 2 yards less than the first side. What is the length of each side?

The answer for this question is a = 13 yards, b = 18 yards, and c = 11 yards.

Solution:

a = first side

b = second side

c = third side

Using the statements given above, a system of three equations can be formed.

a+b+c = 42

a = b-5

c = a-2

Substituting these three equations will give the values of the three variables.