Question

question 5 of 25
what is the length of $overline{ac}$?
a. 128
b. 108
c. 136
d. 144

Explanation:

Step1: Assume similar triangles ABC ~ CDE

AB/DE = AC/CE

Step2: Substitute values: 84/7 = (156 - x)/x

12 = (156 - x)/x

Step3: Solve for x: 12x = 156 - x → 13x=156 → x=12

AC = 156 - x = 156 - 12 = 144

Answer:

D. 144