Across
- 2. Triangle with no sides congruent
- 4. Two lines or sides that intersect at a right angle
- 6. A figure formed by two rays that meet at a common endpoint
- 7. Part of a line that consists of 2 points called endpoints and all points between them
- 8. A two-dimensional closed curved defined by a set of points that are equidistant from a fixed center point
- 12. A triangle with three equal sides
- 13. An angle that measure greater than 90 degrees but less than 180 degrees is called an obtuse angle
- 14. A point that divides a line segment
- 16. A vertex is a point where two or more lines, curves, or edges meet
- 17. A one-dimensional figure that has length but no width. It extends indefinitely in both directions
- 18. A straight line that starts at a fixed point and extends infinity in one direction
Down
- 1. A closed, three-sided polygon with three angles and three vertices
- 3. A straight line connecting two points
- 5. A 4 sided shape where opposite sides are parallel and equal in length
- 9. A set of numbers that helps define the position of a point on a plane
- 10. An angle that measures less than 90 degrees
- 11. A flat, two-dimensional surface that extends infinitely in all directions
- 15. Branch of mathematics that deals with points, lines, planes and solids and examines their properties
