geotry

5. suggest or assume the existence,fact, or truth of (something) as a basis for reasoning, discussion or belief
9. a 2D shape that has 4 sides, 4 corners, and 4 right angles. Opposite sides of a rectangle are the same length, with one pair longer than the other
10. a plane figure with four equal sides and four right (90 degree) angles
12. a part of a figure cut off by a line or plane intersecting it
13. the amount of space within the perimeter of a 2D shape
14. any of a set of straight lines passing through one point
15. Angles that measure less than 90 degrees
16. a triangle that has three unequal sides

1. the line or line segment that divides the angle into two equal parts
2. a part of a line or curve between two points
3. perpendicular line segments from the vertex to the line containing the opposite side
4. a line joining the midpoint of two sides of a triangle
6. exceeding 90 degrees but less than 180 degrees
7. a rule in algebra or other branches of mathematics expressed by symbols or formulae
8. an angle of 180 degrees
11. opposite or contrary in position, direction, order, or effect