Question

utilize Semelhança do Triângulo calcule x e y​

Answer 1

A)

$\frac{15}{12} = \frac{5}{y} \\15y = 60\\y = 4$

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$\frac{15}{x} = \frac{5}{3}\\ 5x = 45\\x = 9$

B)

$\frac{5}{9} =\frac{2}{x} \\5x = 18\\x = 3,6$

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$\frac{5}{3} = \frac{3,6}{y} \\5y = 10,8 \\y = 2,16$

C)

Para achar o Y do triângulo azul, faremos Pitágoras e Y = 3.

$\frac{3}{4} =} \frac{6}{x} \\3x = 24\\x = 8$

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$\frac{5}{4} = \frac{y}{8} \\4y = 40\\y = 10$