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)=

Consider the following statements : 1. If G is the centroid of triangle ABC, then GA=GB=GC. 2. If H is the orthocentre of triangle ABC, then HA=HB=HC. Which of the statements given above is/are correct ?

In a triangle PQR, if angleQ is obtuse and S is the orthocentre of DeltaPQR , then find the orthocentre of DeltaPSR .

If H is the orthocentre of the triangle ABC, R = circumradius and P =AH +BH+CH, then

In Delta ABC if AD is the altitude and O is the orthocentre of Delta ABC then AO:OD=

If H is the orthocenter of Delta ABC and if AH=x,BH=y,CH=z, then (a)/(x)+(b)/(y)+(c)/(z)=

If H is the orthocentre of a triangle ABC,then the radii of the circle circumscribing the triangles BHC,CHA and AHB are respectively equal to