Unit 9: Geometry

3. angle, an angle that measures 90 degrees
6. the unit of measure for angles or temperature
8. triangle, a triangle with at least two congruent sides
9. in a triangle or quadrilateral is the perpendicular distance from the base to the opposite vertex or side
10. a quadrilateral with two pairs of parallel sides
11. triangle, a triangle will all angles measuring less than 90 degrees
12. the number of square units needed to cover a given surface
16. triangle, a triangle with no congruent sides
18. a side of a polygon; a face of a three dimensional figure by which the figure is measured and classified
20. triangle, a triangle with three congruent sides
22. having the same size and shape
24. a three-sided polygon
25. the point where the x-axis and y-axis intersects on the coordinate plane (0,0)

1. angle, an angle whose measure of greater than 90 degrees but less than 180 degrees
2. a quadrilateral with exactly one pair of parallel sides
4. triangle, a triangle containing one obtuse angle
5. the numbers of an ordered pair that locate a point on a coordinate graph
7. the number of cubic units needed to fill a given space
13. prism, a polyhedron whose bases are rectangles and whose other faces are rectangles
14. the distance around a polygon
15. a rule showing relationships among quantities
17. a parallelogram with four right angles
19. a mathematical sentence that shows that two expressions are equivalent
21. angle, an angle that measures greater than 0 degrees and less than 90 degrees
23. triangle, a triangle containing a right angle