Question

Which of the following sets of numbers could be the lengths of the sides of a triangle?

A. 81 mm, 7 mm, 6 mm
B. 81 mm, 7 mm, 72 mm
C. 81 mm, 7 mm, 88 mm
D. 81 mm, 7 mm, 77 mm

Answer 1

a<b+c
b<a+c
c<a+b