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How many sides does a regular polygon have if each exterior angles measure is 20 degrees?
18 sides. The sum of all the exterior angles equals 360°, for any polygon. See related link.
How is the number of sides related to the sum of the interior angles of a polygon?
Because; (number of sides-2)*180 = sum of interior angles
Do the interior angle of a pentagon have to be the same measurement of the perimeter?
The angles of a polygon are not directly related to the measurement of the perimeter. If you measure a perimeter of a pentagon in inches and then again in centimetres, the measurement number will change but the pentagon will remain the same.
What is circumscribed area and inscribed area of regular polygon?
circumscribed means the polygon is drawn around a circle, and inscribed means the polygon is drawn inside the circle. See related links below for polygon circumscribed about a circle and polygon inscribed in a circle.
Can a regular polygon be concave or convex?
no it cannot , because a regular polygon is a shape with equal sides, and for it to be concave or convex some sides have to jut out or in See related link below for more information
