1. Minimum possible interior angle in a regular polygon is ______________.

2. The number of sides in a regular polygon is 15 , then measure of each exterior angle is

3. The angle sum of all interior angles of a convex polygon of sides 7 is

4. The opposite angles of a parallelogram are ______________ .

5. How many measurements can determine a quadrilateral uniquely?

6. What is the sum of the measures of angles of a convex quadrilaterals?

7. All the angles of a regular polygon are of ______________.

8. A parallelogram each of whose angles measures 90° is ______________.

9. Maximum number of right angles in a right angled triangle are

10. The diagonals of a square are ______________ each other

11. The diagonals of a square bisect each other at ______________ angle.

12. A polygon with minimum number of sides is

13. How many sides does decagon has?

14. If two diagonals are given, then we can construct a:

15. How many sides does a heptagon have ?

16. If two diagonals and three sides are given, then:

17. Polygons that have any portions of their diagonals in their exteriors are called

18. How many diagonals does a regular Hexagon has ?

19. The diagonals of a rhombus bisect each other at ______________ angles.

20. To construct a parallelogram we need to know: