Across
- 2. a triangle which has two sides equal
- 4. x^2
- 5. 4th-dimensional triangle
- 6. x^3
- 7. width of a circle
- 8. the area of the surface of an object
- 12. how to find a side with only 1 side and an angle
- 13. half of the diameter
- 14. 3.141592654...
- 16. a triangle with one internal angle equal to 90 degrees
- 17. 4th-dimensional square
- 19. a quadrilateral having both pairs of opposite sides parallel to each other
- 20. a triangle having three unequal sides and angles
Down
- 1. a triangle with equal sides and angles
- 3. the perimeter of a circle
- 9. how to find the slant of a triangle
- 10. a polygon with four sides
- 11. an equilateral parallelogram having oblique angles
- 15. a parallelogram having four right angles
- 18. the space inside an object