Question

Segmentos Proporcionais.

Answer 1

Resposta:

$AB=\frac{5}{7}\ CD=\frac{40}{7}$

Explicação passo-a-passo:

$CD=AB+5\\\\\frac{AB}{CD} =\frac{4}{32}\\\\ \frac{AB}{CD} =\frac{1}{8}\\\\\frac{AB}{AB+5} =\frac{1}{8}\\\\8AB=1.(AB+5)\\\\8AB-AB=5\\\\AB=\frac{7}{5}\ cm\\\\CD=AB+5\\\\CD=\frac{7}{5} +5\\\\CD=\frac{40}{7} \ cm$