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25 votes
25 votes
Can you give me proably a little step by step to the answer so I can understand it a bit more?

Can you give me proably a little step by step to the answer so I can understand it-example-1
User Werner Erasmus
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2.5k points

1 Answer

12 votes
12 votes

Answer:

120 square inches.

Explanation:

  • This is a regular octagon. (It has 8 equal sides).
  • You have enough information to find the area of 1 triangle.
  • label the bottom line as 5.
  • Draw two lines from the center to each end of the bottom 5 inch line.
  • That gives you 1 triangle. Find the area of that 1 triangle.

  • Area = 1/2 b * h
  • b = 5
  • h = 6
  • Area = 1/2 * 5 * 6
  • Area = 15.

  • Now here's the actual answer.
  • You have 8 such triangles.
  • The area of the octagon is 8 * 15 = 120 square inches.
User Lukpaw
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2.4k points