SOLUTION: The altitude of an equilateral triangle is 5.0cm. What is the lenght of a side?
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Question 180798
This 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)
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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