Expressions, equations, and relationships

7.11(C)

Solving Equations With Angles

Write and solve equations using geometry concepts, including the sum of the angles in a triangle, and angle relationships.

Part of The student applies mathematical process standards to solve one-variable equations and inequalities

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Intro

Angles as Equations

In this lesson you will write and solve equations to find missing angles. The plan is always the same: picture the figure, choose the angle rule that matches it, write an equation with a letter for the unknown angle, and solve for that letter.