### Home > CC3 > Chapter Ch6 > Lesson 6.1.3 > Problem 6-30

6-30.

Solve the problem below by defining a variable and then writing and solving an equation. Homework Help ✎

The perimeter of a triangle is

Refer to the Math Notes box in Lesson 1.1.3 to review the 5-D Process.

Side #1

Side #3

Make sure the sides sum to

Side #1

What is the length of Side #3?