Anna is trying to find the length of segment AC. Which equation could she use?

Question

X

A. AC = 2 + 7

AC ^ 2 = 4 ^ 2 + 1 ^ 2

AC ^ 2 = 2 ^ 2 + 7 ^ 2

AC ^ 2 = 7 ^ 2 - 2 ^ 2

To the nearest tenth, which choice is the length of AC?

A 2.2

B 6.8

C 7.3

D 8.2

Answer 1

C. 7.3