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In DeltaABC, perpendicular drawn from po...

In `DeltaABC`, perpendicular drawn from point A meets BC at points D. If `AD^(2)=BD`. DC then which of the following is correct.

A

ABC is a Obtuse angle triangle

B

ABC is a acute angle triangle

C

Either `angleBge45^(@) or angleCge45^(@)`

D

`AC^(2)=AB^(2)+BC^(2)`

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