Geometry Vocabulary

1. Lines that intersect to form right angles.
4. A circular movement in the same direction as the hands of a clock.
6. A perfectly round geometrical object in three-dimensional space.
8. A is a three-dimensional geometric shape with a polygon as its base and the lateral surfaces as triangles that meet at a common vertex
9. The figure formed by two rays, called the sides of the angle, sharing a common endpoint.
10. A polygon with four sides.
11. An angle that measures more than 90 degrees but less than 180 degrees.
15. An angle that measures less than 90 degrees.
16. A circular movement in the opposite direction to the hands of a clock.
18. A unit of measurement for angles.
20. An angle that measures more than 180 degrees but less than 360 degrees.
21. Lines that are always the same distance apart and never meet.
22. A polygon is a two-dimensional shape with at least three straight sides and angles.

2. triangle A triangle with at least two sides of equal length.
3. An angle that measures exactly 90 degrees.
5. A tool used to measure angles.
7. triangle A triangle with all three sides of equal length.
12. The line segment where two faces of a solid figure meet.
13. triangle A triangle with no sides of equal length.
14. The flat surfaces of a solid figure.
17. A tool used to draw circles and arcs.
19. The point where two or more line segments meet.
21. A polyhedron is a three-dimensional solid object with flat faces and straight edges