Use facts about supplementary, complementary, vertical, and adjacent angles to solve simple equations

Start lessonBegins with Angle relationships · Slides

Teacher tools for this standard

Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework

Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
Guided Notes →One page your students fill in and keep.
Exit Ticket →Three items at the end of class. No student accounts.
Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
Homework →Assign practice; it grades itself.

7.G.B.5

7.G.B.5 -- Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure.

What you'll learn

Define supplementary, complementary, vertical, and adjacent angles
State the angle measure relationships for each pair type (supplementary: sum = 180 degrees; complementary: sum = 90 degrees; vertical angles: equal)
Write an equation to represent an angle relationship given a figure with an unknown angle
Solve the equation to find the unknown angle measure
Verify the solution by checking that the angle relationship holds
Apply multiple angle relationships in the same figure to solve multi-step problems

Review first: