In an equalateral triangle of side 2a. Find its altitude
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In an equilateral triangle each angle is of 60°
In ΔABC ,AD is a altitude
In ΔADC, ∠ADC=60°
Sin 60°=AD/AB
√3/2=AD/2a
2a√3/2=AD
AD=√3a
Length of altitude of equilateral triangle of side 2a=√3a
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