Question

Two sides of a triangle are 15 and 8. Which of the following CANNOT be the 3rd side?

A. 9


B. 13


c. 21


d. 5

Answer 1

D

Explanation:

the third side must be between the numbers added together and the number subtracted from each other.

15-8 = 7

15+8=23

Answer 2

5 cannot be a side because any two sides added together cannot be less than the third side