me ajudem com esse exercício sobre teorema de tales pfv.... Pergunta de ideia degracielec9

April 2022 1 28 Report

me ajudem com esse exercício sobre teorema de tales pfv

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alessandropoker Do Teorema de Thales,

$\frac{3x}{x+3x}=\frac{b}{a+b}\\\\\frac{3x}{4x}=\frac{b}{8}\\\\\frac{3}{4}=\frac{b}{8}\\\\4b=3\cdot8\\\\4b=24\\\\\boxed{b=6\,\text{cm}}$

Da figura, a + b = 8.

Por fim,

$a+b=8\\a+6=8\\a=8-6\\\boxed{a=2\,\text{cm}}$

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