# Triangle 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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8th Grade math game for Triangle Sum & Exterior Angles Theorem. Perfect for small groups, independent practice, whole class review, and progress monitoring. This middle school math game covers ALL Common Core math standards related to Triangle Sum Theorem and Exterior Angle Theorem in 8th Grade math.

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Foldable to place in an interactive notebook for students to reference. Use the Triangle Sum Theorem when solving for missing angles using algebra.

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Free Downloads -- Clip Art to pop into any Geometry quiz or worksheet for angle measures! Geometry with Roof Trusses - Clipart and worksheet for finding missing angle measures (practicing Angle Addition Postulate, Triangle Sum Theorem, Supplementary Angles.... ANY angle skill!) Just add your own text boxes to supply "given information" on a quiz or worksheet

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

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Students practice using the Triangle Angle Sum Theorem and Exterior Angle Sum Theorem to calculate missing angle measures in triangles.

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FREEBIE! This activity helps students discover the angle sum property of triangles by cutting off the angles of a triangle and pasting the vertices together, which meet to form a straight line (180°).

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