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Three circles are drawn, so that each circle is externally tangent to the other two circles. Each circle has a radius of  2. A triangle is then constructed, such that each side of the triangle is tangent to two circles, as shown below. Find the perimeter of the triangle.
 

 Aug 20, 2020
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                     F O R M U L A S :

 

                P = 3{ [2( r / tan30º )] + 2r }   

 

                                or

 

                 P = 3 ( 4√3 + 2r )

 

                                laugh

 Aug 21, 2020

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