Question

If O is the orthocentre of the triangle ABC, prove that A, B, C are the orthocentres of the triangle OBC, OAC, OAB respectively.

Please answer it and don't spam​

Answer 1

Answer:

we know that

HG=2GO where G is centroid of triangle

let a point D, between B and C

OD=(OB+OC)/2

OA+OB+OC=OA+2OD

we know that G divide The point A and midpoint

opposite side in ratio 2 :1

OG=

3

OA+2OD

OA+OB+OC=30G=20G+OG

=HG+OG

OA+OB+OC=HO

Answer 2

Answer:

book that is displayed on screen and the text are moving their own in it is called telebook.