What is the length of the altitude of the equilateral triangle below?
http://media.apexlearning.com/Images/200705/25/0cb2d1fc-9e16-4d12-9fc9-c55c556678b2.gif

A. 144
B. sq rt 240
C. 12
D. 4 (sq rt 3)
E. 4
F. 12 (sq rt 3)

Question

What is the length of the altitude of the equilateral triangle below?
http://media.apexlearning.com/Images/200705/25/0cb2d1fc-9e16-4d12-9fc9-c55c556678b2.gif


   A. 144 
   B.  sq rt 240
   C. 12 
   D.  4 (sq rt 3)
   E. 4 
   F.  12 (sq rt 3)

anonymous · Answer

Just use the Pythagoras Theorem:
$$Hypotenuse^2 = Perpendicular^2 + Base^2$$

anonymous · Answer

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