Find the lengths of the three sides in inches.

Question

In a triangle of perimeter 88 in., the length of the first side is twice the length of the second side, and the length of the third side is 8 in. more than the length of the second side. Find the lengths of the three sides in inches.

first side in

second side in

third side in

Answer 1

If side 2 is x, then side 1 must be 2x, and side 3 must be x+8. Adding all 3 sides together, x+2x+(x+8)=88 or 4x+8=88 or 4x=80 or x=20. So, side 1 is 40, side 2 is 20, and side 3 is 28. Hope that helps