Q. 44.1( 28 Votes )

In ΔABC, point M is the midpointof side BC.

If, AB2 + AC2 = 290 cm2,AM = 8 cm, find BC.


Answer :

Given AB2 + AC2 = 290 cm2,AM = 8 cm, BM = MC


According to formula,


AM2 =


64 =


64 –


BC2 = 324


BC = 18.


Thus BC = 18 cm.


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