Across
- 3. half of a diameter
- 5. lines with opposite reciprocal slopes
- 7. has four right angles with two sets of congruent parallel lines
- 9. the 2D version of a sphere
- 10. a triangle with two equal sides
- 13. the lateral area formula is ½(p)(l)
- 14. a triangle that has a 90o angle
- 15. the number that describes the steepness and direction of a line
- 16. a theorem using the formula a2 + b2=c2
- 17. these lines always have the same slope
Down
- 1. the term for equal ratios
- 2. two pairs of opposite parallel lines
- 4. a 3D circle
- 6. a comparison of two numbers
- 8. a line that contains a chord
- 11. means that corresponding angles are congruent
- 12. two times the length of the radius
- 13. the total area formula is pl+2B