Thursday, April 9, 2009

Question to List Formulas of Polygon

Topic : Polygon

Question : List the Formulas of Polygon

Solution :
(N = # of sides and S = length from center to a corner)

Area of a regular polygon = (1/2) N sin(360°/N) S2

Sum of the interior angles of a polygon = (N - 2) x 180°

The number of diagonals in a polygon = 1/2 N(N-3)The number of triangles (when you draw all the diagonals from one vertex) in a polygon = (N - 2)

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