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OpenStudy (anonymous):
Can someone please explain to me how to do this? An equilateral triangle has an altitude of 15 m. What is the perimeter of the triangle?
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OpenStudy (mertsj):
Sometimes a picture helps.
OpenStudy (anonymous):
This is what I figure it would look like. This isn't a diagram given for the question. |dw:1359240759005:dw|
OpenStudy (mertsj):
|dw:1359240761775:dw|
OpenStudy (mertsj):
Now in general, in a 30-60-90 triangle:
OpenStudy (mertsj):
|dw:1359240861611:dw|
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