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Home > CC3 > Chapter 6 > 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 cm. Sides #1 and #2 have equal length, while Side #3 is one centimeter shorter than twice the length of Side #1. How long is each side?

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

Side #1 Side #2
Side #3 Side #1
Make sure the sides sum to .

Side #1 Side #2 cm
What is the length of Side #3?