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Angles of a triangle are in 4:1:1 ration...

Angles of a triangle are in `4:1:1` ration. The ratio between its greatest side and perimeter is `3/(2+sqrt(3))` (b) `(sqrt(3))/(2+sqrt(3))` `(sqrt(3))/(2-sqrt(3))` (d) `1/(2+sqrt(3))`

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