Question

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

a. 1 ft, 2 ft, 5 ft
b. 3 ft, 4 ft, 5 ft
c. 3 ft, 4 ft, 7 ft
d. 2 ft, 4 ft, 7 ft

Answer 1

use triangle inequality

Answer 2

b. 3, 4, 5

Answer 3

thanks!

Answer 4

triangle inequality states, that the sum of lengths of any two sides must be grater than the length of the third side