SOLUTION: The altitude of an equilateral triangle is 5.0cm. What is the lenght of a side?

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Question 180798This question is from textbook Analytic Trigonometry
: The altitude of an equilateral triangle is 5.0cm. What is the lenght of a side? This question is from textbook Analytic Trigonometry

Answer by user_dude2008(1862)   (Show Source): You can put this solution on YOUR website!
x=side

Altitude = x/2*sqrt(3)

5= x/2*sqrt(3)

10= x*sqrt(3)

x=10/sqrt(3)

x=10*sqrt(3)/3


Length of side: 10*sqrt(3)/3 or 5.774 units
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