Geometry crossword

3. a geometric figure is the distance around the figure
4. an angular point of a figure
6. consists of two rays with a common endpoint
9. a point that divides, or bisects, a segment into two congruent segments
11. middle point of a line segment
13. a real number that corresponds to a point
15. two angles that have the same measure
16. 180 degree
18. when three or more lines intersect at one point
19. a geometric figure is the number of square units it encloses
21. statements that we prove using logic, the foundation above, and other previously proved theorems

1. statements that we accept as true and do not try to prove
2. a quadrilateral with both pairs of opposite sides parallel
5. 90 degrees
7. the quotient of two quantities
8. the distance around a circle
10. a segment that contains the center of a circle and has both endpoints on the circle
12. segment joining two nonconsecutive vertices of a convex polygon
13. educated guess
14. to divide into two equal parts
17. a segment that has one endpoint at the center and the other endpoint on the circle
20. a logical argument in which each statement is supported by fact, definition, postulate, theorem, etc