In an equilateral triangle of side 3 root 3 cm, find the lenght of the altitude.
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In an equilateral triangle of side 3 root 3 cm, find the lenght of the altitude.
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Altitude of equilateral triangle = \frac{\sqrt{3}}2 a
= \frac{\sqrt{3}}2 × 3√3
= (√3 × 3√3)/2
= 3(√3)²/2
= 3(3)/2
= 9/2
= 4.5
∴altitude of the equilateral triangle is 4.5
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