Solve the problem below using a Guess and Check table. Note: Be sure to put your work in a safe place, because you will need it for the next lesson.
The perimeter of a triangle is 31 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? Homework Help ✎
What must you guess and what must you check?
Guess side 1 and check that the perimeter = 31 What is the relationship between side 1 and the other sides?
Side 1 = Side 2
Side 3 = 2(Side 1) − 1
Use this information to create your Guess and Check chart.
Make sure the sides sum to 31.