Question

Triangle ABC congruent to triangle DEF and the areas of triangle ABC and triangle DEF are 64cm2.If EF=15.4cm then find BC?

Answer 1

$as \: we \: know \: from \: theoram \: of \: geometry \: for \: two \: \\ two \: congruent \\ \frac{area \: of \: triangle \: abc}{area \: of \: triangle \: def} = \frac{bc}{ef } \\ 64 = \frac{bc}{15.4} \\ bc = 64 \times 15.4 \: cm$

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