shelbysky23 shelbysky23
  • 12-06-2016
  • Mathematics
contestada

find the area of an equilateral triangle with an apothem of 7

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caylus
caylus caylus
  • 12-06-2016
Hello,
Let's x the side of the triangle:
x²-x²/4=7²
==>3/4x²=49
==>x=14/√3

Area= 14/√3 * 7/2 =49√3 /3≈28,29016...


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