Students use the Exterior Angle Theorem to solve for the variable in triangles where two or more angle measures are linear algebraic expressions.

Students use the Triangle Angle-Sum Theorem to solve for the variable in triangles where two or more angle measures are linear algebraic expressions.

Model how to find a missing exterior angle with this eighth-grade geometry worksheet!

Students practice using the converse of the Pythagorean theorem to identify right triangles with this geometry worksheet!

This eighth-grade geometry worksheet introduces students to the Triangle Angle Sum Theorem and has them practice finding a missing interior angle in a triangle.

Find the measures of missing interior and exterior angles of triangles with this geometry worksheet!