petergriffin6600 petergriffin6600
  • 10-04-2019
  • Mathematics
contestada

A regular octagon with sides of length 7 and an apothem of length 10.49 has an area of how many square units

Respuesta :

calculista
calculista calculista
  • 19-04-2019

Answer:

The area of the regular octagon is [tex]293.72\ units^{2}[/tex]

Step-by-step explanation:

we know that

The area of the regular polygon is equal to

[tex]A=\frac{1}{2}Pa[/tex]

where

P is the perimeter of the regular polygon

a is the apothem

Find the perimeter P

[tex]P=8(7)=56\ units[/tex]

Find the area

[tex]A=\frac{1}{2}(56)(10.49)=293.72\ units^{2}[/tex]

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