The sum of interior angles of a polygon is 900°. The number of side in this polygon is:

1. 5

2. 7

3. 9

4. 11

Calculate the sum of angles of a polygon with 10 sides:

Is it possible to have a polygon whose sum of interior angles is:

(i) 870°

(ii) 2340°

(iii) 7 right angles ?

(i) If all the angles of a hexagon are equal, find the measure of each angle.

(ii) If all the angles of a 14-sided figure are equal, find the measure of each angle.