Across
- 2. two, twice
- 3. many, much
- 4. a straight line from the center to the circumference of a circle or sphere
- 5. consisting of two terms (mathematical) or names
- 9. of a triangle: having two sides of equal length
- 11. contemplation, speculation, looking at
- 13. a closed and flat shape with three or more sides made of straight lines
- 14. algebraic expression that consists of variables and coefficients; consisting of several terms
- 15. a straight line or plane that touches a curve, but does not cross it; a completely different line of thought or action
- 17. add notes to (a text or diagram) giving explanation or comment.
- 18. out of, from, away
Down
- 1. the perimeter (outer boundary) of a circle or ellipse
- 3. put, to place
- 6. equal, same
- 7. relating to, the kind of
- 8. around, surrounding
- 10. rising or expanding at a steady, rapid rate
- 12. touch, affect
- 15. an idea, proposition, truth that is not self-evident but is proved by a chain of reasoning or using other accepted truths
- 16. mark, sign, note
