Question

2) (FUVEST-SP) O valor de x na figura é:
X
3
a) 1
b) 4
c)
d)
2
10

Answer 1

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$\boxed{\sf\underline{Relac_{\!\!,}\tilde ao~entre~Cordas}}\\\huge\boxed{\boxed{\boxed{\boxed{\boxed{\sf\overline{PA}\cdot\overline{PB}=\overline{PC}\cdot\overline{PD}}}}}}$

$\sf 10\cdot x=2\cdot 3\\\sf 10x=6\\\sf x=\dfrac{6\div2}{10\div2}\\\huge\boxed{\boxed{\boxed{\boxed{\sf x=\dfrac{3}{5}\checkmark}}}}\\\huge\boxed{\boxed{\boxed{\boxed{\sf\maltese~alternativa~c}}}}$