Answers

1. 331.5 inches²  is the area of the octagon, rounded to the nearest square inch.

   What is octagonal in shape?

   • In geometry, an octagon is a polygon that has 8 sides and 8 angles.
   • All the sides are joined end to end to form the shape of the octagon.
   • The sum of the interior angles of an octagon is equal to 180 degrees.

   Solving for an area of a regular octagon, we can make use of the formula shown below:

   Area = 1/2 × apothem × perimeter

   In this problem, the following values were given such as:

   Apothem = 10 inches

   Perimeter = 66.3 inches

   Put the values in the formula

   Area = 1/2 × 10 × 66.3

   Area = 331.5 inches²  

   Learn more about area of the octagon

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