Question

A triangle has two sides of length 19 and 18. What is the smallest possible whole-number length for the third side?

Answer 1

2

Explanation:

the length of one side of a triangle must be:

-greater than the difference of the lengths of the other two sides &

-less than the sum of the lengths of the other two sides

19-18<x<19+18 *let x represent the length of the 3rd side

1<x<37

so, since x has to be greater than 1, the smallest possible whole-number length of the 3rd side is 2.