### Home > CC2MN > Chapter 6 Unit 6B > Lesson CC2: 6.1.4 > Problem 6-45

6-45.

. Homework Help ✎

The perimeter is the sum of all the sides. Mark each side with its length to help you find the perimeter.

Combine like terms to form an expression of the perimeter.

cmSubstitute

for in the algebra tile shape or the expression you found to find the perimeter for this given value.

cmSubstitute

for in the algebra tile shape or the expression you found to find the perimeter for this given value.