
Calculating Angle Measures
9th Grade · Math · 45 min
Lesson Preview
Learning Objective
I can calculate angle measures using the same side interior angle theorem.
- 1
Same side interior angles are located on the inside of two parallel lines and on the same side of the transversal.
- 2
Same side interior angles add up to 180 degrees.
- 3
To solve for a missing angle or variable, set up an equation where the sum of the two same side interior angles equals 180 and then solve the equation.
