SOLUTION: What is the height of an equilateral triangle if the sides are 4 inches?

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Question 625436: What is the height of an equilateral triangle if the sides are 4 inches?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
h+=+4%2Acos%2860%29+=+2sqrt%283%29
=~ 3.464
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You can use Pythagoras:
h+=+sqrt%284%5E2+-+2%5E2%29