SOLUTION: The altitude of an equilateral triangle is 12 cm.find the perimeter of the triangle
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Question 562536: The altitude of an equilateral triangle is 12 cm.find the perimeter of the triangle
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The altitude of an equilateral triangle forms a 30-60-90 right triangle where the side of the equilateral triangle is the hypotenuse and the altitude is the long leg. The sides of a 30-60-90 right triangle are in proportion 
. Hence, if the side of the equilateral triangle measures 
, then the altitude must measure 
.
A little algebra music, Sammy:
Now that you have one side of your equilateral triangle, you should be able to compute the perimeter yourself.
John
My calculator said it, I believe it, that settles it
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