9x + 22
Work Step by Step
The perimeter of a triangle is found by adding all three sides together. Perimeter = (3x + 11) + (3x + 11) + 3x = 9x + 22
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.