Lista de exercícios do ensino médio para impressão
Given four distinct points A, B, C and D in a straight line, how many rays whose endpoints are A, B, C or D are there in this line?

 



answer: 8 rays
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(FUVEST - 1977)
Given that:
$\,\overline{MP}\;\bot\;s\,$;$\;\overline{MQ}\;\bot\;t\,$;$\;\overline{MQ}\;\bot\;\overline{PQ}\,$;$\;\overline{MP}\,=\,6$
The length of $\,\overline{PQ}\,$ é is:
a)
$\,3\sqrt{3}\,$
b)
$\,3\,$
c)
$\,6\sqrt{3}\,$
d)
$\,4\sqrt{3}\,$
e)
$\,2\sqrt{3}\,$
angle whose sides are the rays s and t crossed by the straight line MP perpendicular to s

 



answer: (B)
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