Geometry Crossword Activity

2. a flat surface that extends endlessly in all directions.
4. an exact location in space.
6. of the root of a number or quantity
7. an angle whose measure is 180°
8. angle formed in the interior of a circle when two chords intersect
12. portion of a curve
13. length, distance between two points on a circle
14. have the same shape and size
15. consists of two rays that have a common endpoint called the vertex of the angle.
17. a part of a line having two endpoints.
19. two angles with equal measure formed by two intersecting lines.

1. an angle whose measure is 90°.
3. a collection of points along a straight path that extends endlessly in both directions.
4. two ratios that are set equal to each other.
5. two lines that intersect to form right angles
9. two lines in the same plane that do not intersect
10. a straight line or plane that touches a curve or curved surface at a point
11. a line from the center of a regular polygon at right angles to any of its sides.
16. line segment joining two points on a curve
18. a part of a line having only one endpoint.