Q. 284.5( 2 Votes )

In the given figure, AMN = MBC = 76°. If a, b and c are the lengths of AM, MB and BC respectively then express the length of MN in terms of a, b and c.


Answer :

In ΔAMN and ΔABC


AMN = ABC = 76° (Given)


∠A = ∠A (common)


By AA Similarity criterion, ΔAMN ~ Δ ABC


If two triangles are similar, then the ratio or the their corresponding sides are proportional





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