Across
- 4. a parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides.
- 7. the base angles are equal and therefore the left and right side lengths are also equal
- 8. non-adjacent angles
- 14. identical in form; coinciding exactly when superimposed.
- 16. a four-sided plane rectilinear figure with opposite sides parallel.
- 17. a regular polygon is a polygon that is equiangular and equilateral.
- 19. convex quadrilateral with at least one pair of parallel sides
- 20. a ten-sided polygon or 10-gon.
- 22. a side of a polygon or a face of a polyhedron
- 23. divide into two equal parts.
- 24. the angle between a side of a rectilinear figure and an adjacent side extended outward.
- 26. a segment that connects the midpoints of two sides of a triangle.
- 28. the angle between adjacent sides of a rectilinear figure.
- 30. Two angles whose angles measures add up to 180 degrees.
- 31. one of the sides of a triangle
- 32. a quadrilateral whose four sides can be grouped into two pairs of equal-length sides that are adjacent to each other
Down
- 1. two straight lines in a plane that do not intersect at any point
- 2. a straight line joining two opposite corners of a square, rectangle, or other straight-sided shapes.
- 3. A polygon that does not have all sides equal and all angles equal.
- 5. the middle point of a line segment.
- 6. a four-sided plane rectilinear figure with opposite sides parallel.
- 9. a polygon in Euclidean plane geometry with four edges and four vertices
- 10. each angular point of a polygon, polyhedron, or other figures.
- 11. a nine-sided polygon
- 12. two lines that meet at a right angle.
- 13. a quadrilateral with four right angles
- 15. either of the angles of a triangle that have one side in common with the base.
- 18. the side across from a given angle
- 21. two sides that have an endpoint in common
- 25. the pair of angles on one side of the transversal and inside the two lines
- 27. there are NO "dents" or indentations in it
- 29. four equal sides and four equal angles.