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Dayanavanderlei
@Dayanavanderlei
December 2019
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Calcule a medida de X na figura abaixo sendo que as medidas sao 2cm,6cm e 20°
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alcon
A)Sen B=PA/BA
Sen 20= 2/x
Sen 20(x)=2
0,34 x=2
x=2/0,34
x=5,88cm
b)Cos B=AP/AB
Cos 20=2/x
0,93 x=2
x=2/0,93
x=2,15cm
c)Cos C= AB/AC
Cos 20=x/8
x=8(Cos 20)
x=8x0,93
x=7,44cm
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Lista de comentários
Sen 20= 2/x
Sen 20(x)=2
0,34 x=2
x=2/0,34
x=5,88cm
b)Cos B=AP/AB
Cos 20=2/x
0,93 x=2
x=2/0,93
x=2,15cm
c)Cos C= AB/AC
Cos 20=x/8
x=8(Cos 20)
x=8x0,93
x=7,44cm