Question

The first side of a triangle measures 4 in. less than the second side, the third side is 3 in. more than the first side, and the perimeter is 15 in. How long is the third side? If s represents the length of the second side, which of the following represents the length of the third side?

Answer 1

A)4+3+x=15
x=8 so the 2nd side is 8.
b) s-5 is the answer because the 8-5=3.