find the area of an equilateral triangle, if the altitude is 5, 3root cm.
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in equilateral triangle if side is A
then altitude is √3*A/2
5√3 = A√3/2
⇒A=10
area = √3*A²/4
= 100√3/4 = 25√3
then altitude is √3*A/2
5√3 = A√3/2
⇒A=10
area = √3*A²/4
= 100√3/4 = 25√3
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