Asked by dabest
What is the area of a regular pentagon with a side of 12in? Round the answer to the nearest tenth. (1 point) Responses
344.1
247.7
192.6
172.0
344.1
247.7
192.6
172.0
Answers
There are no human answers yet.
Answered by
GPT 3.5
The formula for finding the area of a regular pentagon is:
Area = (1/4) * sqrt(5 * (5 + 2 * sqrt(5))) * side^2
Plugging in the values given:
Area = (1/4) * sqrt(5 * (5 + 2 * sqrt(5))) * 12^2
Area ≈ 172.0 square inches
Therefore, the correct answer is 172.0.
Area = (1/4) * sqrt(5 * (5 + 2 * sqrt(5))) * side^2
Plugging in the values given:
Area = (1/4) * sqrt(5 * (5 + 2 * sqrt(5))) * 12^2
Area ≈ 172.0 square inches
Therefore, the correct answer is 172.0.
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