Dimensions: 27511

Calculate the surface of the paper cylinder (without lid), which has the following dimensions: bottom radius: 7 cm, cylinder height: 22 cm.

Correct answer:

S =  1121.5486 cm²

Step-by-step explanation:

$$\begin{gathered} r=7\text{cm} \\ h=22\text{cm} \\ S=\pi \cdot r^2+2\pi \cdot r\cdot h=3.1416\cdot 7^2+2\cdot 3.1416\cdot 7\cdot 22=1121.5486{\text{cm}}^2 \end{gathered}$$

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