Learn what a pentagon is, how to identify the total degrees in a pentagon, and how to find the sum of interior angles of a pentagon.
How can one prove that the exterior angles of polygon always add up to 360 degrees? What do alternate interior angles look like? How do you find the measurement of the angles in a polygon? How to find the number of sides of a polygon using the given angle?
Illustrated in FIGS. 1, 2 and 3 is a dodecahedron presented as a transparent "solid" for purposes of clarity. The regular dodecahedron 10 pictured has twelve rhombic faces such as 12 of equal size with angles 14 at the acute vertices of 70°]32". In actual application the exterior is si...