Unit 3, Lesson 11# Angle Problems and Solving Equations (Continued)

EngageNY 45 min(s)

Students use vertical angles, adjacent angles, angles on a line, and angles at a point in a multi-step problem to write and solve simple equations for an unknown angle in a figure. At the heart of each problem is the need to model the angle relationships in an equation and then solve for the unknown angle. The diagrams are all drawn to scale; students should verify their answers by using a protractor to measure relevant angles. Students describe the angle relationship in the diagram and set up and solve an equation that models it.