lt852103
lt852103 lt852103
  • 12-04-2017
  • Mathematics
contestada

f the area of an equilateral triangle is 9√3 sq ft, how long is a side?

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irspow
irspow irspow
  • 12-04-2017
The area of an equilateral triangle is always:

A=√((3s^4)/16) or if you prefer:  A=(s^2/4)√3

So if A=9√3 we have:

9√3=(s^2/4)√3

9=s^2/4

s^2=36

s=6 feet
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