Across
- 3. equation stating that two ratios are equal
- 5. angles that add up to 180 degrees
- 11. identical in shape and size
- 12. point at which the altitudes of a triangle intersect
- 14. angle greater than 0 but less than 90
- 15. length times width
- 16. lines that are not parallel nor do they intersect
- 17. angle greater than 90 but less than 180
- 18. the total length around the outside of a shape
- 20. point at which the perpendicular bisectors intersect
Down
- 1. a segment joining two nonconsecutive vertices of a convex polygon
- 2. a quadrilateral with both pairs of opposite sides parallel.
- 4. the quotient of two quantities
- 6. statement that is accepted as true based on basic geometric principles
- 7. the endpoints of the sides of a polygon
- 8. triangle with two congruent sides
- 9. lines that intersect to form a 90-degree angle
- 10. two angles that add up to 90degreess are_____
- 13. A triangle with three congruent sides is _____
- 19. the first and last numbers in a proportion