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Hmmmmmm..................That set of problem had another problem which I shall be posting in a new thread

OA+OB<CA+CBOB+OC<AB+ACOC+OA<BC+BAadding all those you get what you need, assuming CA=AC etc.

Please somebody help me!

noemi wrote:Hint for 1.:OA+OB<CA+CB

Hint for 1.:OA+OB<CA+CB

Why?

I remember doing it at the 7th Grade, but what about 1.?

Excellent!I am hoping there's a similar way to do Q1 but, so far, it has eluded me.Bob

I did 2.

hi AgnishomHere's a start for number 2.AO + OB > ABBob

Let there be a triangle ABC and O a point inside it.Now, how can I prove that:1.