cutiepie0815 cutiepie0815
  • 20-02-2015
  • Mathematics
Answered

The altitude of an equilateral triangle is 9 meters, what is the side length?

Answer :

konrad509
konrad509 konrad509
  • 20-02-2015
[tex]h=9=\dfrac{a\sqrt3}{2}\\ \dfrac{a\sqrt3}{2}=9\\ a\sqrt3=18\\ a=\dfrac{18}{\sqrt3}\\ a=\dfrac{18\sqrt3}{3}\\ a=6\sqrt3[/tex]
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