Q. 64.6( 16 Votes )

In <span lang="EN

Answer :


We know, By Apollonius theorem


In ΔABC,


if P is the midpoint of side BC, then AB2 + AC2 = 2AP2 + 2BP 2


Given that, AP is median i.e. P is the mid-point of BC



And BC = 18 cm


and AB2 + AC2 = 260


260 = 2AP2 + 2(9)2


260 = 2AP2 + 162


98 = 2AP2


AP2 = 49


AP = 7 units


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