# Angle Puzzles: Angles in Triangles

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This set of four puzzles offers a challenge to students learning about angles in a triangle. The puzzles include algebra applications. Students must set up and solve linear equations to find some of the missing angle measures. The puzzles will really get your students thinking about how to get from one part of a diagram to another. Each puzzle uses sets of different skills with triangles and angles. You can use all four at once or set them up as learning stations. Students can progress from the easiest (Puzzle D) to the most difficult (Puzzle C) or you can use the different puzzles to differentiate in your classroom.

Prior Knowledge Required:
Solving linear equations
Base angles of an isosceles triangle are congruent.
Vertical angles are congruent.
The sum of angle measures in a triangle is 180 degrees.
The sum of angle measures that form a straight angle is 180 degrees.
Alternate interior angles are congruent.
Definition of rectangle
Definition of congruent triangles

*** Note: This activity is also included in a larger DISCOUNTED bundle:
Triangles Bundle

Try these other Geometry Resources:
Congruent Triangles Proofs
Triangle Classification and Impossible Triangles
Algebra In Geometry Task Cards: Finding Missing Angle Measures
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Teaching Duration
50 minutes
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\$2.00