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OpenStudy (anonymous):
Triangle ABC is equilateral, find the height of BD I'll draw it now
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OpenStudy (anonymous):
|dw:1377126729023:dw|
OpenStudy (anonymous):
Sorry, sloppy drawing
OpenStudy (anonymous):
okay you know that the three sides are equal ,thus the the value of the angle = 180/3=60
OpenStudy (anonymous):
then you have sin60=h/8 h=8*root3/2=\[4\sqrt{3}\]
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