# math

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Find the area of the regular polygon. Round your answer to the nearest tenth.
the individual sides are 10 the radius is 13.07

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radius to what where with center where?

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the 10 is on one of the lines of the polygon then a line from the center
goes from the center to the edge of polygon inside with a doted line

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does that help

please help me with this

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http://www.mathsisfun.com/geometry/regular-polygons.html

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If your radius is to the corners, then
10 = 2* 13.07 sin (180/n)
sin (180/n) = .382555
180/n = 22.5
n = 8 sides
360/8 = 45 = top angle of each isoceles triangle
half of that has hpotenuse of 13.07 and base of 5
area of each of those 16 triangles = (1/2) (5)(13.07 cos 22.5) = 30.2
16*30.2 = 483

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thank you

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If your radius is to the center of each side then
tan (360/2n) = 5/13.07
180/n = 20.93
n = 8.59 sides
I doubt if that is what it means so use my previous answer.

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