Across
- 1. The space between two lines or planes that intersect
- 4. An angle that is equal to 180°
- 6. A type of quadrilateral that all sides are equal and diagonals intersect each other at 90 degrees.
- 7. A triangle having three unequal sides and angles
- 8. A shape with a circular base and sides tapering to a point
- 10. A type of triangle that has any two sides equal in length
- 15. Quadrilaterals that have two parallel sides and two non-parallel sides
- 16. A four sided-polygon, having all the internal angles equal to 90 degrees
- 17. And angle equal to 90°
- 18. The amount of space in a certain 3D object, or figure.
- 20. A line enclosing a plane area
- 21. An angle less than 90° but more than 0°
- 23. A part of a line or curve between two points.
Down
- 2. a triangle that has 3 equal sides and angles.
- 3. A specific identifiable position in a continuum or series
- 5. Any closed curve consisting of a set of line segments (sides) connected such that no two segments cross
- 9. A triangle in which one angle measures 90 degrees and the other two angles are less than 90 degrees.
- 11. Corresponding in character or kind
- 12. A continuous portion of a circle
- 13. The intersection point of two sides of a plane figure
- 14. A straight line is passing through the center of a circle or sphere and meeting the circumference or surface at each end.
- 19. An angle greater than 90 degrees but less than 180 degrees
- 20. Are two lines in a polygon that never intersect.
- 22. A continuous extent of length