Question

Which one of the following sets of lengths can be the lenghts of the sides of a triangle? A 2,3,5 B 3,4,5 C 2,4,7 D 4,3,7

Answer 1

Answer is B.

Explanation:

For possible sets of lengths that can be the lenghts of the sides of a triangle, we must have

sum of smaller two sides to be greater than the largest side.

This is true only in case `B` as `3+4>5`, hence answer is B.

Note that while in case A and D, these are equal, in case C, the sum of smaller two sides is less than the largest side.