Answers

  • Gun
  • Ambitious
2014-04-28T16:14:10+05:30
Length of altitude = sqrt(3)/2 X length of side.                    sqrt stands for "square root of"
= sqrt(3)/2 X 3 X sqrt(3)
=4.5

Ans. 4.5 cm
1 5 1
2014-04-28T17:34:44+05:30
Length of the altitude of an equilateral triangle of side "a" units =  \frac{ \sqrt{3}a}{2}

Length of the altitude =  \frac{ \sqrt{3}.3 \sqrt{3} }{2}

                               = 9/2 
                               = 4.5 cm
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