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A polygon has 44 diagonals. How many sides does this polygon have?

Each interior angle of a regular polygon is 150°. Find the number of sides of the polygon.

Find the number of sides of regular polygon. If the ratio of interior angles and exterior angles are 3:2.

The sum of interior angles of a polygon is 1,620°.

(a) Find the number of sides of the polygon.

(b) Find the number of diagonals of this polygon.

Each interior angle of a regular polygon is 150°. Find the number of sides of the polygon.

The sum of interior angles of a regular polygon is 1260°. Find  the number of diagonals.

If each interior angle of a regular polygon is 135°, then the number of sides that polygon has is:

Find the number of sides in a regular polygon if its each interior angle is 160°.

The external angle of a regular polygon is 82°. Find the internal angle.