If O And O’ denote Respectively The Circum-centre And Orthocentre Of∆ABC, Then 

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Question

If O and O denote respectively the circum-centre and orthocentre of∆ABC, then 

Solution

Correct option is

 

Let G be the centroid of ∆ABC. Then O’, G, O are collinear and G divides O’ O in the ratio 2 : 1 i.e.   

Replacing S by O in illustration 1, we have  

             

  

  

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Q10

If O and O denote respectively the circum-centre and orthocenter of âˆ†ABC, then