Do angles add up to 180
- Do alternate angles add up to 180
- Do interior angles add up to 180
- Do triangle angles add up to 180
- Do parallel angles add up to 180
- Do same side interior angles add up to 180
- Do triangle angles always add up to 180
- Angles add up to 180 are called
- Do corresponding angles add up to 180
- Do vertical angles add up to 180
- Do supplementary angles add up to 180
- Do adjacent angles add up to 180
- Do complementary angles add up to 180
- Do all angles add up to 180
- Do exterior angles add up to 180
- Do congruent angles add up to 180