Q. 14.3( 275 Votes )

Let Δ ABC ~

Answer :

It is given that,

Δ ABC ~ Δ DEF


Therefore,


Given:


EF = 15.4 cm


ar (ΔABC) = 64cm2


ar (ΔDEF) = 121 cm2


Hence,



Taking square root on both of the sides


BC = (8 × 15.4) / 11


BC = 8 × 1.4 = 11.2 cm

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