Geometry

2. A polygon with five sides
3. The distance around the exterior of a figure on a flat surface
5. A polygon with nine sides
8. A point that divides a segment into two segments of equal length
9. A quadrilateral with two pairs of parallel sides
11. A triangle with two sides of equal length
14. A diagram showing an argument for a conclusion from certain evidence
15. A line segment drawn through the center of a circle with both endpoints on the circle
16. A polyhedron of six faces, each of which is a square
18. formed by two rays that are joined at a common endpoint
19. A transformation across a line that produces a mirror image of the original (pre-image) shape

1. A polygon with eight sides
2. Two rays, line segments, or lines that meet (intersect) to form a right angle (90º) are called perpendicular
4. Two lines on a flat surface are parallel if they never intersect
6. a polygon where all of its sides have equal length
7. distance of the number from zero
10. one-dimensional and extends without end in two directions
12. Any angle that measures between 91-180 degrees
13. A line segment drawn from the center of a circle to a point on the circle
17. A polygon with six sides