Question

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

A) 3 ft, 6 ft, 9 ft

B) 3 ft, 5 ft, 7 ft

C) 3 ft, 6 ft, 12 ft

D) 3 ft, 9 ft, 27 ft

Answer 1

if we draw the "flattest" triangle possible:
so I would look at the biggest number of the 3, and ask, do the other 2 add up to more than it to make a triangle.

Answer 2

so it's b?

Answer 3

why so doubtful? Yes. choice (a) would would end up being a straight line. (Draw it)
the other 2 are way off. (Try to make a triangle and you see the 2 short legs are too short)

Answer 4

okay thanks!