1. If ∠A of a parallelogram ABCD is of 60°, then the measure of the opposite angle ∠C is

2. If all the four sides of a parallelogram are equal and the adjacent angles are of 120° and 60°, then the name of the quadrilateral is

3. In a kite, what is false?

4. Two adjacent angles of a parallelogram are of equal measure. The measure of each angle of the parallelogram is

5. The angle sum of a convex polygon with number of sides 7 is

6. The angle sum of a convex polygon with number of sides 8 is

7. The angle sum of a convex polygon with number of sides 10 is

8. The measures of the three angles of a quadrilateral are 65°, 75° and 85°. The measure of the fourth angle is

9. The measures of each of the four angles of a quadrilateral are equal. Find the measure of each angle.

10. The measures of two angles of a quadrilateral are 110° and 100". The remaining two angles are equal. The measure of each of the remaining two angles is