Across
- 4. Side-angle-side congruence
- 6. A parallelogram with four congruent sides, not a square
- 8. Lying in the same plane
- 10. Also knows as a special type of rhombus
- 11. The distance around the outside of a plane figure
- 12. A line segment on the interior of a circle
- 16. Two lines intersecting at a point
- 17. A shape with 5 sides
- 18. Exactly equal in size and shape
- 20. Two distinct coplanar lines that do not intersect
- 21. A point where two or more straight lines meet
Down
- 1. radius squared
- 2. When two sides of a triangle are the same
- 3. Formula for this shape is pi(r^2)
- 5. A line which passes through at least two points of a curve
- 7. A line that touches a curve at a point without crossing over
- 8. Pi times diameter
- 9. The radius of a regular polygon's inscribed circle.
- 13. A line segment between the center and a point on the circle
- 14. The side of a right triangle opposite the right angle.
- 15. Lying on the same line
- 19. The geometric figure formed by two points