Lesson 10) Quadrilaterals

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Across
  1. 2. Whose diagonals intersect at 90.
  2. 5. Whose diagonal are congruent?
  3. 8. In a parallelogram ABCD, mLA=55, then mLC=?
  4. 10. Whose all four sides are equal?
  5. 12. 2 Dimensional object.
  6. 13. A quadrilateral divides a plane into ___ parts.
Down
  1. 1. mLA=70, mLC+mLD=100, then mLB=?
  2. 3. Sum of all angles of a quadrilateral.
  3. 4. Measure of an angle of square.
  4. 6. Line segment joining opposite sides.
  5. 7. Synonym of quadrilateral.
  6. 9. A quadrilateral has ___ parts.
  7. 11. Universal set in geometry.