Find the surface area and the volume of a sphere whose radius equals 6.
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Explanation
Step 1
volume
the volume of a sphere is given by:
[tex]\begin{gathered} V=\frac{4}{3}\text{ }\pi r^3 \\ \text{where r is the radius} \end{gathered}[/tex]then,let r=6 and replace
[tex]\begin{gathered} V=\frac{4}{3}\pi\cdot r^3 \\ V=\frac{4}{3}\pi\cdot(6)^3 \\ V=\frac{4}{3}\pi\cdot216 \\ V=904.77\text{ cubic units} \end{gathered}[/tex]Step 2
the surface area:
the surface area of a sphere is given by:
[tex]S=4\text{ }\pi r^2[/tex]then, let r=6
replace
[tex]\begin{gathered} S=4\text{ }\pi(6)^2 \\ S=4\pi\cdot36 \\ S=452.38\text{ squared units} \end{gathered}[/tex]I hope this helps you