The three sides of an equilateral triangle measure x + 12, 2x - 5 and 3x - 22 inches. The sides of the triangle measure
a. 17 inches
b. 29 inches
c. 32.5 inches
d. 44.5 inches
An equilateral triangle has all the sides equal. So we are given with x + 12, 2x - 5 and 3x - 22 inches. Which means : x + 12 = 2x - 5 = 3x - 22 Solving for x : x + 12 = 2 x - 5 12 + 5 = 2 x - x 17 = x
