Respuesta:
A) 2π b)3π c)4π
Explicación paso a paso:
a) longitud de la circunferencia es = 2π*r = 2π*1 = 2π
b) A = π*[tex]r^{2} \\[/tex] , Amorado = π*[tex]2^{2}[/tex] = 4π
Ablanco= π*[tex]1^{2}[/tex] = π
Area region sombreada = Amorado - Ablanco = 4π+π = 3π
C) Amorado = π*[tex]2^{2}[/tex] = 4π
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Respuesta:
A) 2π b)3π c)4π
Explicación paso a paso:
a) longitud de la circunferencia es = 2π*r = 2π*1 = 2π
b) A = π*[tex]r^{2} \\[/tex] , Amorado = π*[tex]2^{2}[/tex] = 4π
Ablanco= π*[tex]1^{2}[/tex] = π
Area region sombreada = Amorado - Ablanco = 4π+π = 3π
C) Amorado = π*[tex]2^{2}[/tex] = 4π