# Exterior Angles

This matching activity is a great way to have students practice finding unknown measures of interior and exterior angles of triangles. There are 12 problems students will solve and match up the answers to on the mat. Students need to apply the triangle sum theorem and also use supplementary and complementary angles to solve for the unknown measure. Teacher answer key included! Common Core Aligned: 8.G.5

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Kelsoe Math: Triangles Unit: Interior Angle Sum and Exterior Angle (Remote Interior Angles)

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This is a coloring activity for a set of 12 problems on the exterior angle sum theorem. The exterior angle is equal to the sum of the two remote…

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Math by Tori: Triangles Unit: Interior Angle Sum and Exterior Angle (Remote Interior Angles)

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Geometry Problem 1268: Exterior Angle Bisector, Circumcircle, Circle, Chord, Parallel, Concyclic Points, Cyclic Quadrilateral

Hands-On DIscovery Lessons (both tech and non-tech based) for Vertical Angles, Triangle Sum Theorem, Exterior Angles, Transversals & Parallel Lines, and more: How to set up the lessons

These hands on geometry lessons are such a great way to help kids see the relationship between the interior and exterior angles in triangles! This free download is simple to use and includes teaching tips and an answer key!

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Get students out of their seats and writing equations to solve for missing angle measures with this interactive angle relationships scavenger hunt. Students will practice writing equations to determine angles measures given algebraic expressions to represent angles. Students will be able to solve for x or a missing angle given parallel lines cut by a transversal (with congruent or supplementary pairs), interior and/or exterior angle measures of a triangle and more. By Free to Discover.

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