Question

Solve this as fast as possible

Answer 1

HOLA

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$\frac{ab}{ad} \: = \: \frac{5.6}{1.4} = \: \frac{1}{4} \\ \\ \frac{ae}{ac} = \: \frac{1.8}{7.2} = \: \frac{1}{4} \\ \\ hence \: by \: converse \: of \: bpt \\ \\ de || bc$
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