Question

find the perimeter. simplify your answer.

Explanation:

Step1: Recall perimeter formula

The perimeter $P$ of a triangle is the sum of the lengths of its sides. So $P=(u + 6)+(u + 3)+8$.

Step2: Combine like - terms

First, combine the $u$ terms: $u+u = 2u$. Then combine the constant terms: $6 + 3+8=17$. So $P=2u + 17$.

Answer:

$2u + 17$