1 answer
(click or scroll down)
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.