Faces.
Wiki User
∙ 2010-03-15 18:42:33true
They form a vertex of the polygon.
A polygon is formed by three or more sides. there is no specific figure.
The polygon is a Quadrilateral.
An internal angle of the polygon.
A polygon
It is not a solid figure because an icosagon is a polygon with 20 sides
polygon
either an obtuse, acute, or right angle
The interior angle of a polygon is the angle formed by two adjacent sides of a polygon where the angle lies inside the area formed by the polygon. The exterior angle is that formed by one of these sides and the line formed by extending the other side. Consequently, External angle = 180 deg - Internal angle. Because they form supplementary angles, it does not matter which of the two sides you extend.
The number of diagnol formed by a convex polygon having N sides is {N*(N-1)/2} - N .
It is the number of sides of the polygon minus two as for example a pentagon has 5 sides and so 5-2 = 3 triangles