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In triangle A B C ,/A=30^0,H is the orth...

In triangle `A B C ,/_A=30^0,H` is the orthocenter and `D` is the midpoint of `B C`. Segment `H D` is produced to `T` such that `H D=D T` The length `A T` is equal to
(a). `2B C`
(b). `3B C`
(c). `4/2B C`
(d). none of these

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