Q. 165.0( 1 Vote )

# Δ ABC is an equilateral triangle of side 2a units. Find each of its altitudes.

Given: ABC is an equilateral triangle

AB = AC = BC = 2a

And let AD is an altitude on BC. Therefore,

Now, In ∆ADB, using Pythagoras theorem, we have

(Perpendicular)2 + (Base)2 = (Hypotenuse)2

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