Question

It says to find the surface area of each figure. Round to the nearest hundredth. Please help!

Answer 1

The figure given is a sphere, and we want to find the surface area. The diameter of the sphere has been given as 11 cm.

Surface area of a sphere is found using the formula

`\begin{gathered} S.A=4πr^2 \\ where\text{ r = radius = }(diameter)/(2)=(11)/(2)=5.5 \end{gathered}`

Putting in the values of pi and radius r into the formula, we have the surface area S.A as

`\begin{gathered} S.A=4πr^2 \\ =4*\pi*5.5^2 \\ =380.13271108\text{cm}^2 \end{gathered}`

Hence the answer is 380.13 square-centimeter to the nearest hundredth