Geometry

2. A closed two-dimensional figure made up of straight lines. It may also mean “shape” or “plane.”
3. An angle that is greater than 90⁰ but less than 180⁰.
4. These are 2 angles that form a straight angle.
7. This refers to the length or distance around a closed two-dimensional figure or shape.
10. An angle that is exactly 360⁰.
13. A term that has a Greek root meaning “measurement of earth.”
15. A kind of line that has a beginning and end.
16. These are 2 lines that intersect at one point and would form right angles.
17. These are 2 lines that would never cross or even get closer together.
18. An angle that is exactly 90⁰.
19. An angle that is greater than 180⁰ but less than 360⁰.

1. These are 2 angles that form a right angle.
5. An angle that is less than 90⁰.
6. The unit used in measuring angles.
7. A tool curved into a half circle to measure an angle.
8. A combination of 2 lines, specifically 2 rays, with a common starting point.
9. An element of geometry that is represented with arrows on both ends to show that it is continuous.
11. An angle that is exactly 180⁰.
12. An element of geometry that gives a specific location and has no length, width, shape, or size.
14. A kind of line that has a beginning but no end.
16. An element of geometry that is two-dimensional and takes at least 3 points to form.