Geometry Dictionary

5. Angles that sum to 90°
7. A triangle with no equal sides or angles
8. A triangle with 3 equal sides and 3 equal angles
9. An angle greater than 90°
10. An angle equal to 90°
11. Angles that are inside the parallel lines and on opposite sides of the transversal
12. Angles that sum to 180°
15. Angles that are across from each other when two lines intersect
16. The two sides of a right triangle that form the 90° angles
17. A triangle with 2 equal sides and 2 equal angles
18. A line that intersects two or more lines
20. This states that the sum of the measures of the three angles in a triangle add up to 180°
21. Angles that are in the same position on the parallel lines in relation to the transversal

1. An angle equal to 180°
2. A formula used to find sides of a right triangle
3. The side opposite the 90° angle in a right triangle
4. Two lines that never intersect
5. Angles that are inside the parallel lines and on the same side of the transversal
6. Angles that are outside the parallel lines and on opposite sides of the transversal
13. A three sided figure; angles sum to 180°
14. Angles that share a common ray and vertex; angles that are next to each other
19. An angle less than 90°