Question

A triangle has side lengths of (x-6), (x+2) and (x-9). Find the perimeter of the triangle

Answer 1

3x - 13

Explanation:

The perimeter is just the distance around the triangle. We have all three sides, so we can just add them together to get the total distance.

(x-6) + (x+2) + (x-9)

Group:

x + x + x - 6 + 2 - 9

3x - 13