Question

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Answer 1

$Pela~semelhanca~de~triangulos~temos:\\\\ \dfrac{6}{x}= \dfrac{1,5}{1,5-x} \Rightarrow 1,5x=6 (1,5-x) \Rightarrow 1,5x=9-6x \Rightarrow \\\\1,5x+6x=9 \Rightarrow 7,5x=9 \Rightarrow x= \dfrac{9}{7,5} ~~\therefore~~\Larged\boxed {x=1,2m}$