Resposta :

Eriivan
A ) 

[tex]S=4\pi.R^2\\S=4\pi.5^2\\S=100\pi~cm^2[/tex]

B )

[tex]V= \frac{4\pi.R^3}{3} [/tex]

[tex]V= \frac{4\pi.5^3}{3} [/tex]

[tex]V= \frac{4\pi.125}{3} [/tex]

[tex]V=166,6\pi...cm^3[/tex]
araujo1948
Raio da esfera=5cm; A...área; V..volume
a) A=4x3,14xr2
A=4x3,14x 5x5
A=12,56 x 25
A=314 cm2

B) V=4x3,14x(5)3/3
V=12,56 x125/3
V=1570/3
V=523,33 cm3

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