perplexus.info :: Shapes : The Triangle

The Triangle (Posted on 2002-06-03)

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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| Comment 11 of 20 |

Use Pythagorean theorum:
a²+b²=c²
If the hypotenuse of an equilateral triangle within a circle is 6, then:
6²-3² is aproximatly 5.20

Posted by Chris on 2003-06-23 08:57:02

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