SOLUTION: One side of an equilateral triangle is 6 cm. Whats the measure of an altitude of the triangle?
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Question 485705: One side of an equilateral triangle is 6 cm. Whats the measure of an altitude of the triangle?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
If you draw an altitude in an equilateral triangle, you create a 30-60-90 triangle, the sides of which are in proportion:
where 
is the measure of the hypotenuse of the 30-60-90 triangle, and therefore the measure of the side of the equilateral triangle.
John
My calculator said it, I believe it, that settles it
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