SOLUTION: If the perimeter of an equilateral triangle is 30 ft, what is the area?

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Question 598989: If the perimeter of an equilateral triangle is 30 ft, what is the area?
Answer by flame8855(424) About Me  (Show Source):
You can put this solution on YOUR website!
p= 3a where a is the length of each side
p=30 , a=10
area= (3^(1/2)/4)*a^2 = 25(3)^1/2 ft^2