One angle of a regular polygon is `144^(circ) .` How many șides does it have?

The outer and inner angles of à regular polygon are in the ratio 2:7. How many sides does it have?

How many even factors does 3600 have?

The sum of the outer angles of a polygon is twice the sum of the inner angles. How many sides does it have? What if the sum of outer angles is half the sum of inner angles? And if the sums are equal?

The sum of the angles of a, polygon is 1980^(circ) . What is the sum of the angles of a polygon with one side less? What about a polygon with one side more?

How much is each angle of a 15 side regular polygon? How much is each outer angle?

One angle of an isosceles triangle is 60^(circ) . What are the other two angles?