1. A rectangle is a square.

2. Which is/are the definition of a rectangle?i. A parallelogram with one right angle.ii. A quadrilateral with congruent diagonals.iii.A quadrilateral with four congruent angles.

3. The coordinates of the vertices of parallelogram ABCD are A(−3,2), B(−2,−1), C(4,1), and D(3,4). The slopes of which line segments could be calculated to show that ABCD is a rectangle?

4. Parallelogram ABCD has coordinates A(1,5), B(6,3), C(3,−1), and D(−2,1). What are the coordinates of E, the intersection of diagonals AC and BD?

5. ABCD is a rectangle. AB = 14, BC = 9, AC = 22. Find DC.

6. ABCD is a rectangle. AB = 14, BC = 9, AC = 22. Find BD.

7. ABCD is a rectangle. AB = 14, BC = 9, AC = 22. Find ED.

8. ABCD is a rectangle. m∠BCA = 58. Find m∠ADC.

9. ABCD is a rectangle. m∠BCA = 58. Find m∠BAC.

10. ABCD is a rectangle. m∠BCA = 58. Find m∠ADB.