Question

Eighth grade 1.12 Surface area of Cynder What is the surface area of this cylinder? Use a ~ 3.14 and round your answer to the nearest hundredth. 10 m 7 m square meters Submit

Answer 1

Surface Area of a Cylinder

Given a cylinder of radius r and height h, its surface area is calculated as follows (including the top and bottom areas):

`A=2\pi r^2+2\pi rh`

The cylinder of the figure has a radius of r=10 m and a height of h=7 m. Substitute into the formula:

`\begin{gathered} A=2\pi10^2+2\pi(10)(7) \\ A=200\pi+140\pi=340\pi \end{gathered}`

Using the value of pi=3.14:

A = 340 * 3.14 = 1,067.6 square meters

The surface area is 1,067.6 square meters