Problema Solution

the perimeter of a triangle is 45 inches. the length of one side is twice the length of the second side. the second side is five inches more than the third side. find the length of the third side.

Answer provided by our tutors

Let

x = the length of the third side

x + 5 = the length of the second side

2(x + 5) = the length of the first side

The perimeters is 45 in means:

x + (x + 5) + 2(x + 5) = 45

........

click here to see the equation solved for x

........

x = 7.5 in

The length of the third side is 7.5 inches.