Lista de exercícios do ensino médio para impressão
In the picture below, ABCD is a rectangle, $\,\overline{AB}\,=\,4\,$, $\,\overline{BC}\,=\,1\;$ and $\,\overline{DE}\,=\,\overline{EF}\,=\,\overline{FC}\;$. The length of $\,\overline{BG}\,$ is:
a)
$\,\dfrac{\sqrt{5}}{4}\,$
b)
$\,\dfrac{5}{2}\,$
c)
$\,\dfrac{9}{4}\,$
d)
$\,\dfrac{11}{4}\,$
e)
$\,\dfrac{5}{\sqrt{2}}\,$
retangle ABCD whose base side is coincident with the ABG triangle base side

 



answer: (B)
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