1.

ntif AD,BE,CF are the altitudes of triangle ABC whose orthocentre is H , then C is the orthocentre ofn nt(1)tri(ABH)n nt(2)tri(BDH)n nt(3)tri(ABD)n nt(4)tri(BEA)n

Answer» ntif AD,BE,CF are the altitudes of triangle ABC whose orthocentre is H , then C is the orthocentre ofn nt(1)tri(ABH)n nt(2)tri(BDH)n nt(3)tri(ABD)n nt(4)tri(BEA)n


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