Answer:
Ac = 144
Step-by-step explanation:
From the figure we can see two similar triangles,Ratio of sides of similar triangles are equal.
To find the value of x
From the figure we can write,
7/84 = x/(156 - x)
1/12 = x/(156 - x)
156 - x = 12x
13x = 156
x = 156/13 = 12
To find the value of AC
AC = 156 - x
= 156 - 12
= 144
Therefore AC = 144
