Question

A razão entre as medidas dos segmentos AB e CD e 7/4. Se AB = 28cm, determine CD.

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Answer 1

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$\sf{\dfrac{\overline{AB}}{\overline{CD}}=\dfrac{7}{4}}\\\sf{\dfrac{28}{\overline{CD}}=\dfrac{7}{4}}\\\sf{7\overline{CD}=28\cdot4}\\\sf{\overline{CD}=\dfrac{\diagdown\!\!\!\!\!28^4\cdot4}{\diagdown\!\!\!\!7}}\\\sf{\overline{CD}=16~cm}$