Respuesta:
Explicación paso a paso:
[tex]c= 6\sqrt{2} m[/tex] ; [tex]b = ?[/tex] ; [tex]a = 10m[/tex] ; [tex]C = 45^{0}[/tex] .
Aplicando la ley de los cosenos:
[tex]a^{2} = b^{2} +c^{2} -bcCosC[/tex]
[tex]10^{2} = b^{2} + (6\sqrt{2} )^{2} -2(b)(6\sqrt{2} ) C os (45)[/tex]
[tex]100 = b^{2} +36(2)-12(b)\sqrt{2} * \frac{\sqrt{2} }{2}[/tex]
[tex]100= b^{2} +72- 12b[/tex]
[tex]b^{2} -12b+72-100=0[/tex]
[tex]b^{2} -12b -28 = 0[/tex]
Por el método de factorización:
[tex](b-14) ( b+2) = 0[/tex]
[tex]b-14 = 0; b+2 = 0[/tex]
[tex]b = 14 ; b = -2.[/tex]
Tomamos el valor de " b " positivo; ya que la longitudes de los lados son positivas.
[tex]b = 14m[/tex]
Area: A= ?
[tex]A = \frac{a*b*SenC}{2}[/tex]
[tex]A = \frac{(10m) * (14m)Sen(45) }{2} =\frac{(10m)*(14m)*(\frac{\sqrt{2} }{2} ) }{2}[/tex]
[tex]A = \frac{70m^{2}*\sqrt{2} }{2} = 35\sqrt{2} m^{2}[/tex]
[tex]A = 35\sqrt{2}[/tex] [tex]m^{2}[/tex]
[tex]A = 35 ( 1.41 42) m^{2}[/tex]
[tex]A = 49.5m^{2}[/tex]
RESPUESTA:
[tex]35\sqrt{2}[/tex] [tex]m^{2}[/tex] ó [tex]49.5[/tex] [tex]m^{2}[/tex]
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Respuesta:
Explicación paso a paso:
[tex]c= 6\sqrt{2} m[/tex] ; [tex]b = ?[/tex] ; [tex]a = 10m[/tex] ; [tex]C = 45^{0}[/tex] .
Aplicando la ley de los cosenos:
[tex]a^{2} = b^{2} +c^{2} -bcCosC[/tex]
[tex]10^{2} = b^{2} + (6\sqrt{2} )^{2} -2(b)(6\sqrt{2} ) C os (45)[/tex]
[tex]100 = b^{2} +36(2)-12(b)\sqrt{2} * \frac{\sqrt{2} }{2}[/tex]
[tex]100= b^{2} +72- 12b[/tex]
[tex]b^{2} -12b+72-100=0[/tex]
[tex]b^{2} -12b -28 = 0[/tex]
Por el método de factorización:
[tex](b-14) ( b+2) = 0[/tex]
[tex]b-14 = 0; b+2 = 0[/tex]
[tex]b = 14 ; b = -2.[/tex]
Tomamos el valor de " b " positivo; ya que la longitudes de los lados son positivas.
[tex]b = 14m[/tex]
Area: A= ?
[tex]A = \frac{a*b*SenC}{2}[/tex]
[tex]A = \frac{(10m) * (14m)Sen(45) }{2} =\frac{(10m)*(14m)*(\frac{\sqrt{2} }{2} ) }{2}[/tex]
[tex]A = \frac{70m^{2}*\sqrt{2} }{2} = 35\sqrt{2} m^{2}[/tex]
[tex]A = 35\sqrt{2}[/tex] [tex]m^{2}[/tex]
[tex]A = 35 ( 1.41 42) m^{2}[/tex]
[tex]A = 49.5m^{2}[/tex]
RESPUESTA:
[tex]35\sqrt{2}[/tex] [tex]m^{2}[/tex] ó [tex]49.5[/tex] [tex]m^{2}[/tex]