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Complementary & supplementary angles
In this tutorial we'll look at the most famous types of angle-pairs--complementary and supplementary angles. This aren't particularly deep concepts, but you'll find they do come in handy!
Let's add some tools to our geometry tool belt. Here's a thorough explanation of complementary and supplementary angles, as well as definitions of adjacent and straight angles.
Use your knowledge about complementary and supplementary angles to find missing angles.
Given the algebraic expressions that represent a pair of complementary angles, Sal forms and solves an equation.
Given the algebraic expressions that represent a pair of supplementary angles, Sal forms and solves an equation.
Given the sum of a pair of angles and the algebraic expressions that represent them, form and solve an equation.