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In an equilateral triangle, three coins ...

In an equilateral triangle, three coins of radii 1 unit each are kept so that they touch each other and also the sides of the triangle. The area of the triangle is (fig) `4:2sqrt(3)` (b) `6+4sqrt(3)` `12+(7sqrt(3))/4` (d) `3+(7sqrt(3))/4`

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