- Combining angles: Adding and subtracting adjacent angles
- Complementary angles: Learn about complementary and supplementary angles
- Coterminal angles: What about angles bigger than 360 degrees?
- Vertical angles: Angles on opposite sides of intersecting lines and always congruent to each other.
- Corresponding angles: Parallel lines form congruent angles in matching places
- Alternate interior angles: Congruent angles INSIDE parallel lines
- Alternate exterior angles: Congruent angles OUTSIDE parallel lines
When you have angles next to each other with a ray that’s shared between the angles, we can find the measure of their combined angle by adding their measures together.
Angles that add up to 90 degrees are called complementary angles. Angles that add up to 180 degrees are called supplementary angles.
Parallel lines are two lines that run in the same direction and never intersect. Transversal line is the that crosses the parallel lines.
Corresponding angles are congruent angles in matching position along a transversal.
Vertical angles are angles that on opposite sides of intersecting lines and always congruent to each other.
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