Question

1. Mr. Garcia uses a cylindrical container to protect his diploma. The dimensions of the cylinder are shown in the diagram. 15 cm 10 cm Which measurement is closest to the total surface area of the container in square centimeters?

Answer 1

The total surface area is

`S=2\pi(r)^2+2\pi rh`

Where r = 5 cm and h = 15 cm.

`\begin{gathered} S=2\cdot3.14\cdot(5)^2+2\cdot3.14\cdot(5)(15) \\ S=157+471 \\ S=628 \end{gathered}`

Hence, the total surface area is around 628 square centimeters. A is the answer.