Across
- 5. A 3 sided polygon.
- 6. The line segment connecting two non-adjacent side of a polygon.
- 7. The horizontal axis in cartesian coordinate plane.
- 8. The union of two rays with a common end-point,called the vertex.
Down
- 1. A line that intersects the circle at any one point.
- 2. The other name for x-coordinate.
- 3. A selection in which order is not important .
- 4. Mathematician famous for "Elements of geometry"