Across
- 1. Diagonals ______ each other.
- 3. What parallelogram having all four sides equal?
- 6. What is a is a closed plane figure of four sides?
- 9. What is this sign stand for? "∠"
- 10. Are the line segments that connect two opposite vertices.
- 12. What quadrilateral has both pairs of its opposite sides are parallel?
- 13. What do you call the point on a line that
- 14. ______ angles are angles whose sum 180°
- 16. that divides it into two equal parts.
- 17. ______ sides of a parallelogram are
- 19. What parallelogram in which all four angles are right angles?
Down
- 2. What quadrilateral having exactly one pair of parallel sides?
- 4. A ______ is both equiangular and equilateral.
- 5. the symbol ∥ indicates...
- 7. What type of trapezoid whose non-parallel sides are equal?
- 8. _____ angles of any quadrilateral is 360°
- 11. It is also called the endpoints of a quadrilateral.
- 15. What do you call a rule in algebra or expressed by symbols or formulae.
- 18. What quadrilateral has two pairs of equal adjacent sides but unequal opposite sides?