Geometry Crossword Puzzle

1. , A transformation that maps a figure onto itself.
4. , A four-sided polygon.
9. , a line with a single endpoint (or point of origin) that extends infinitely in one direction.
10. , A common endpoint of two sides of a polygon or an angle.
11. , A polygon with three edges and three vertices.
13. , preserves line lengths and angle measurements
15. , An eight-sided polygon.
16. , A segment that connects two nonadjacent vertices of a polygon.
18. , A five-sided polygon.
19. , A series of connected line segments that starts and ends at the same place and does not intersect itself anywhere in between.
20. , A six-sided polygon.

2. ,a three-sided figure that sides are all the same length.
3. Bisector , A line that intersects a given segment at right angles and divides it into two equal parts.
5. lines , straight lines that do not intersect at any point.
6. , A set of points on a line consisting of two endpoints and all the points between them.
7. , A seven-sided polygon.
8. , Is any Polygon whos sides have all equal legths and whose angles all have equal measures.
12. Angle , An angle that measures 90º.
14. , Two geometric objects having the same measure.
17. , A figure formed by two line segments or rays with a common endpoint.