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OpenStudy (anonymous):
Calculate the area of the regular pentagon below: 164.025 square inches 238.95 square inches 351.78 square inches 477.9 square inches
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OpenStudy (anonymous):
OpenStudy (anonymous):
@Vocaloid @mathstudent55 @welshfella @Suspect
OpenStudy (welshfella):
calculate the area of the big triangle (= 0.5*base*height) then multiply the answer by 5
OpenStudy (welshfella):
Note each side of the regular pentagon is = 11.8
OpenStudy (anonymous):
I got 47.79 @welshfella
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