Across
- 3. another word for "equal" in geometry
- 4. a parallelogram with all sides congruent
- 6. angles that add to 180°
- 7. another name for a 90° angle
- 8. the longest side of a right triangle
- 9. a transformation that makes a shape larger or smaller
- 11. the acronym used in trigonometry (sin, cos, tan)
- 12. a parallelogram with all right angles
- 15. a quadrilateral with two adjacent congruent sides; can be split into congruent triangles by a diagonal
- 16. a shape with all sides and angles congruent
- 18. a quadrilateral with two pairs of parallel sides
- 19. a completely round shape; the base of a cylinder
- 21. the distance around a circle
- 22. each of the pairs of opposite angles made by two intersecting lines
Down
- 1. a shape with one pair of parallel sides
- 2. any four-sided shape
- 5. two lines intersecting to form a right angle
- 10. a triangle with two congruent sides
- 13. a triangle with all congruent sides
- 14. when a shape is flipped across an axis
- 17. the distance from a circle's center to it's edge
- 18. two lines that are always the same distance apart and never touch
- 20. the point exactly in the middle of a segment