geometry

5. a figure with four equal straight sides and four right angles
6. having sides unequal in length
9. middle point of a line segment
13. three straight sides and three straight angles
14. a part of a line that has one endpoint.
16. identical in form
17. straight one-dimensional figure
19. two geometric objects that intersect and form right angles at the point of intersection
20. pair of lines neither parallel nor interesting

1. having equal angles
2. measure of a shape's size
3. point where the perp. bisector of the sides of that particular triangle intersect
4. the relationship in amount or size between two or more things
7. statement which has been proved true by a special kind of logical argument
8. divides into two parts
10. side by side and having the same distance continuously between them
11. point used to tell the exact location of a plane or line
12. a logical statement that will explain why a statement in true
15. value in the middle of a data set
18. measure of the steepness of a line