Download Regular Pentagon Right Angles Gif. A convex pentagon has no angles pointing inwards. A regular pentagon has no right angles ( it has interior angles each equal to 108 degrees).
GRE Geometry Formulas from s3.amazonaws.com $abcde~$ is a regular pentagon. Five congruent sides (sides of equal length). More precisely, no internal angles can be more than 180°.
To be honest, i've never gotten this to work the first time.
This is a companion to the dodecahedron calendar project. This is a companion to the dodecahedron calendar project. The exterior angles are 72 0. If a polygon is not regular (such as the one seen at the right), you cannot use this formula.
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