How many angles does a 10-sided polygon have?

By the standard definition of a polygon (the only one I know, actually), which is a closed plane figure formed by (3 or more) straight sides and angles, the 10-sided polygons, or decagons, have 10 angles. read more

By the standard definition of a polygon (the only one I know, actually), which is a closed plane figure formed by (3 or more) straight sides and angles, the 10-sided polygons, or decagons, have 10 angles. One way to look at it would be this: choose one of the sides, count the sides clockwise. read more

A 10 sided polygon will have 10 angles. If the polygon is regular, all ten angles will be congruent. If the angles are congruent, each exterior angle will be 1/10 of 360 degrees, or 36 degrees. read more

A polygon with 10 sides and 10 angles is called a decagon . read more