Have you asked the fighters in the Octagon or the Pentagon? Or did someone put a "Hex" on your thinking stop sign?
Best I can tell, all regular polygons have the same number of sides and interior angles
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Because of the formula: (n-2)*180 = total sum of interior angles where n is the number of sides of the polygon.
Triangles, rectangles and octagons are all examples of a polygon. A polygon is a polygon whose sides are the same length and whose interior angles are the same measure
there r 800 vetices in three triangles
Any n-sided polygon (n being any integer) will always have a minimum of n-2 triangles inside the shape, assuming that the polygon is regular with no reflex angles.
Not that I know of, an octagon has eight sides and eight angles. Triangles have three of each, as well as hexagons. Based on that information, I'm pretty sure it's the same case with any polygon.