geometry

2. the extent or measurement of a surface or piece of land
7. an exact location in space.
11. the middle point of a line segment
13. a triangle that has all three sides equal to each other along with all three angles measured the same at 60°
15. a figure which is formed by two rays or lines that shares a common endpoint.
16. identical in form.
17. a straight set of points that extend in opposite directions

1. 2 π r
3. the angle between the horizontal line and the observation of the object from the horizontal line
4. an angle which is greater than 90° and less than 180°
5. two or more lines that are always the same distance apart and never intersect, even if they are extended infinitely in both directions
6. the continuous line forming the boundary of a closed geometric figure
7. a statement that is assumed to be true based on basic geometric principles.
8. if corresponding angles are congruent, and the ratios of corresponding sides are constant
9. an angle smaller than the right angle
10. a statement that can be proved to be true based on known and proved facts.
12. 10 sided polygon
14. 9 sided polygon