Question 146394: Find the area of an equilateral triangle w/ a side of 6 inches
Answer by Socom491(19)   (Show Source):
You can put this solution on YOUR website! First in since the triangle is an equilateral triangle, all sides are equal, and thus each side is 6. Also that means that all the angles of the triangle are congruent, and in since a triangle must have 180 degrees, we divide 180 by 3 and get 60. Thus each angle is 60.
Then we use the area formula.
K= .5 AB Sine C
K = .5 6(6) Sine 60
K= 15.5
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