1. In the parallelogram below, AB is parallel to CD and x-y=40 what is y?
2. Find the area of a rhombus with side length 6 and an interior angle with measure 120 degrees.
3. Which of the following statements are true?
(A) A quadrilateral is a parallelogram if it is a rhombus.
(B) A quadrilateral is a rhombus if it is a parallelogram.
(C) A quadrilateral is a parallelogram if and only if it is a rhombus.
(D) A quadrilateral is a rhombus if and only if it is a parallelogram.
Enter all correct options as a list, separated by commas.
4. Which of the following statements are true?
(A) If a kite is also a parallelogram, then it must be a rhombus.
(B) If a trapezoid is also a parallelogram, then it must be a rhombus.
(C) If a trapezoid is also a kite, then it must be a parallelogram.
(D) If a rhombus is also a trapezoid, then it must be a kite.
Enter your answer as a list, separated by commas.
5. An isosceles trapezoid has side lengths 13,3,13 and 14. What is the perimeter of its Varignon parallelogram?
6. ABCD is a parallelogram such that AB=sqrt(3)*BC. Diagonals line AC and line BD intersect at X and Angle ABC=Angle BXC. Find the measure of Angle ACB in degrees.
+37158 1 . y is much larger than x in the diagram.....how can x-y be positive 40?
2
+37158 More like they are labelled backwards! 
Wanted to be sure Q was posted correctly....
