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The Triangle (Posted on 2002-06-03) Difficulty: 2 of 5
An equilateral triangle with one side 6cm is inscribed in a circle with its three vertices on the circumference. What is the diameter of the circle?

See The Solution Submitted by Dulanjana    
Rating: 2.6923 (13 votes)

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Solution Straight Math | Comment 1 of 20
The altitude of the tiangle is 3*(SQRT[3]) cm. It is also ¾ the diameter of the circle, so the diameter is 4*(SQRT[3]) = 6.928 cm
  Posted by TomM on 2002-06-03 16:01:39
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