The perimeter of the triangle shown on the right is 113 feet.
Find the length of each side.
The lengths of the sides are feet.
(Use a comma to separate answers as needed.)
Perimeter = sum of all sides 2x + 9x - 7 + x = 113 Combine like terms 12x - 7 = 113 12x = 120, x = 10 Plug in 10 for x for each side 2(10) = 20 feet 9(10) - 7 = 83 feet x = 10 feet The lengths of the sides are 20, 83, 10 feet
