Question

Sejam AB e CD dois segmentos, tais que, AB=4 e AB/CD=2/5. Detremine a medida de CD.
(A) 8
(B)10
(C)20
(D)30

Answer 1

Resposta:

B

Explicação passo-a-passo:

$\frac{AB}{CD} = \frac{2}{5} \\\\\frac{4}{CD} = \frac{2}{5} \\\\CD = \frac{4.5}{2} \\\\CD = 10u.m.$