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Learning Goal
Part of: Solve real-life and mathematical problems involving angle measure, area, surface area, and volume — 2 of 3 cluster items
Use facts about supplementary, complementary, vertical, and adjacent angles to solve simple equations
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.
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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°; complementary: sum = 90°; 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
Slides
Interactive presentations perfect for visual learners • Interactive presentation
Slide Video
Watch narrated slides play like a video lesson • Narrated slide playback
Exercises
Practice problems to build fluency and understanding • 1 exercises