# Given: Cylindar: r=3cm, h=4cm SA=?

Given:
Cylindar: r=3cm, h=4cm
SA=?

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davonliefI
$$\displaystyle{S}{A}={2}\pi{r}{\left({h}+{r}\right)}$$
Substitute
$$\displaystyle{S}{A}={2}\pi{\left({3}\right)}{\left({4}+{3}\right)}$$
$$\displaystyle={42}\pi{c}{m}^{{2}}$$
$$\displaystyle\approx{131},{94}{c}{m}^{{2}}$$