Question

A triangle has two sides of lengths 7 and 9. What value could the length of

the third side be? Check all that apply.
I A. 13
I B. 2
I C. 5
1 D. 10
O E. 22
F. 8
SUBNET

Answer 1

C. 5

Explanation:

We use the Pythagorean theorem to solve this.

7^2 + b^2 = 9^2

49 + b^2 = 81

81 - 49 = 32

sqrt(32) = about 5

I'm always happy to help :)