Across
- 5. A closed figure made up of at least 3 line segments that do not cross, such as a triangle, a quadrilateral, a pentagon, etc. rhombus.
- 6. Relating to or situated in or extending toward the middle
- 7. A three-sided regular polygon
- 9. A part of a line, with one endpoint, that continues without end in one direction. bisector.
Down
- 1. The middle point of a line segment.
- 2. Elevation above sea level or above the earth's surface
- 3. Lying in the same plane
- 4. A solid figure bounded by plane polygons or faces
- 5. Set of points that has infinite length and width but no height.
- 8. A parallelogram with four equal sides