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TopNewestThere is a triangle ABC. Let O and H be its orthocentre and circumcentre respectively. Its given that AH=AO. Prove that angle BAC is 60° – Avinav Gupta · 4 years ago

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– Vamsi Krishna Appili · 4 years ago

Picture of triangle pleaseLog in to reply

let equation of BC of a triangle ABC be 2x+3y-1 = 0 and coordinates of incentre and circumcentre of ABC are (2,1) and (-1,3) respectively then the value of cosC+cosB = ?? – Avinav Gupta · 4 years ago

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