Find area of the regular pentagon. If one side…

Discussion in 'Mathematics' started by Priver, Oct 16, 2017.

  1. Priver

    Priver New Member

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    Find area of the regular pentagon. If one side is 16
     
  2. Rugzv

    Rugzv New Member

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    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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