Question

Oa segmentos AB,CD,EF e GH formam ,nessa ordem,uma proporçao.SendoAB=15cm,Cd=10cm e EF=12cm,calcule a medida de GH

Answer 1

$\frac{AB}{CD} = \frac{EF}{GH} \\ \\ \frac{15}{10} + \frac{12}{GH} \\ \\ 15GH=10.(12) \\ \\ 15GH=120 \\ \\ GH=120\div15 \\ \\ GH=8cm$