Across
- 3. An angle less than 90 degrees
- 6. The state of being stretched tightly
- 9. A force acting on the inside of an object
- 11. A force acting on the outside of an object
- 13. An action that changes the shape of something
- 14. Usually the longer side of a shape
- 15. A measurement used to measure angles starting from 0
- 16. A triangle with two same angles and two same edges
- 18. Animal or nature made
- 20. The outside of a shape, calculated by adding up all the edges
Down
- 1. Putting pressure on it from different sides until it breaks or gets smaller
- 2. An angle greater than 90 degrees
- 4. A twist on an object
- 5. A push or a pull
- 7. A shape with two sets of parallel lines
- 8. Where two lines meet
- 10. Usually the shorter side of a shape
- 12. The amount of space between two intersecting lines
- 17. A 3D object that is strong, stable, and free-standing
- 19. People-made