O is the Ortho centre of `Delta ABC ` then A will be Orthocentre

If S is the circumcentre,O is the orthocentre of Delta ABC, then bar(SA)+( O is the orthocentre )/(SC) equals

Orthocentre of triangle

If H is the orthocentre of the Delta ABC, then find AH.

If H is the orthocentre of f Delta ABC, then : sin(angle BHC)=

ABC is a Delta such A,B,C are at a distance 5 units from the origin. If ((1)/(3)-(1)/(3)) is the centroid of DeltaABC then the orthocentre is