Question

Which expression represents the perimeter, in centimeters, of the triangle

Answer 1

8t + u - 7 or -7 + u + 8t ( to match the multiple choice answers)

Explanation:

the perimeter is the distance around an object, therefore we need to add up all three sides of the triangle to get the perimeter

2t + 2 + 6t - 7 + u - 2 = perimeter

combine like terms to simplify

2t + 6t + u + 2 - 2 - 7

8t + u -7