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Caline08
@Caline08
November 2019
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Determine o valor de x e y nos triângulos abaixo
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newtoneinsteintesla
Vamos usar semelhança de triângulos
No primeiro:
4/18=y/15
2/9=y/15
9y=30
y=30/9
y=10/3
4/18=3/x
2/9=3/x
2x=27
x=27/2
No segundo:
4/x=12/10
4/x=6/5
6x=20
x=20/6
x=10/3
y/6=4/10/3
y/6=12/10
10y=72
y=72/10
y=7,2
1 votes
Thanks 2
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Lista de comentários
No primeiro:
4/18=y/15
2/9=y/15
9y=30
y=30/9
y=10/3
4/18=3/x
2/9=3/x
2x=27
x=27/2
No segundo:
4/x=12/10
4/x=6/5
6x=20
x=20/6
x=10/3
y/6=4/10/3
y/6=12/10
10y=72
y=72/10
y=7,2