Question

Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two sides of this triangle?

5 cm and 8 cm
6 cm and 7 cm
7 cm and 2 cm
8 cm and 8 cm

Answer 1

D

Explanation:

Answer 2

Assuming your version of the triangle inequality requires the other two sides to add to more than 13 cm, the only pair of lengths that does so is
8 cm and 8 cm

_____
Sometimes, the triangle inequality is expressed as
a + b ≥ c
For that version, all except the 3rd choice would be viable.