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    Congruent Circles in an Equilateral Triangle

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    3 congruent circles with radius 5 are tangent to each other. The circles are enclosed in an equilateral triangle. What it the perimeter of the triangle?

    © BrainMass Inc. brainmass.com October 9, 2019, 9:02 pm ad1c9bdddf
    https://brainmass.com/math/triangles/congruent-circles-equilateral-triangle-170715

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    Let ABC is the triangle circumscribing all the circles. ...

    Solution Summary

    Congruent circles in an equilateral triangle are used to calculate its perimeter.

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