Q. 93.6( 10 Votes )

The orthocentre o

Answer :

Since , H is the orthocenter of the ΔABC


X, Y and Z are the midpoints of AH, BH and CH respectively

XYZ is a triangle.

Hence, XZ||AC

So, HOX=HEA=90°

Similarly, XY||AB

And HPX=HFA=90°

And YZ||BC

So, HQZ=HDC=90°

Hence, HO, HP and HQ are the altitudes of ∆XYZ

So, H is the orthocenter of ∆XYZ

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