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Get to know your complementary angles with this helpful practice sheet! Remember, complementary angles add up to make 90 degrees.

Master your knowledge of supplementary angles with this geometry practice sheet! Remember that supplementary angles add up to make 180 degrees.

Give your child practice working with angles on this fun geometry sheet. They'll add and subtract degrees as they turn the ship's steering wheel.

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

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.

Turn your fourth grader into a geometry detective! How many degrees is each missing angle in these quadrilaterals?

How much does your fourth grader know about triangles? Can he figure out the missing angle in each of these triangles?