Discussion in 'Mathematics' started by Priver, Oct 16, 2017.
Find area of the regular pentagon. If one side is 16
Okay so a pentagon has 5 sides. So divide 360 by 5 to get 72 Then use the formula for area of a triangle A=1/2 abSinC=1/2 16 x 16 xSin 72=121,735=121,74 Area of pentagon=122 cm^3
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