Respuesta :

The shape in the questionis a sphere having

Radius = 10ft

Finding the Surface area

The surface area of a square is given as

[tex]\text{Surface Area of sphere = 4}\pi r^2[/tex]

putting the value for radius

[tex]\begin{gathered} \text{Surface Area of sphere = 4 }\times\frac{22}{7}\times\text{ 10}\times10 \\ \text{Surface Area of sphere = }\frac{4\text{ }\times22\times10ft\times10ft}{7} \\ \text{Surface Area of sphere = }\frac{8800ft^2}{7} \\ \text{Surface Area of sphere = 1257.14ft}^2 \\ \text{Surface Area of sphere }\cong1257ft^2\text{ ( to the nearest whole number)} \end{gathered}[/tex]

The surface area of the sphere = 1257 square feet

Finding the volume

The volume of a sphere is given as

[tex]\text{volume of sphere = }\frac{4}{3}\pi r^3[/tex]

putting the value of radius

[tex]\begin{gathered} \text{Volume of sphere = }\frac{4}{3}\times\frac{22}{7}\text{ }\times10ft\text{ }\times10ft\text{ }\times10ft \\ \text{Volume of sphere = }\frac{88000ft^3}{21} \\ \text{Volume of sphere = 4190.47ft}^3 \\ \text{Volume of sphere}\cong4190ft^3\text{ (to the nearest whole number)} \end{gathered}[/tex]

Therefore, the volume of the sphere = 4190 cubic feet