Discussion in 'Mathematics' started by Archipta, Jan 10, 2016.
Find area of the regular pentagon. If one side is 16
Okay so a pentagon has 5 sides. 360 divided by 5=72 Then use the area of a triangle formula 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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