Question

The height of cylinder is 18cm, radius is 7cm. What is total surface area?​

Answer 1

$\: \: \: \: \sf{ the \: height \: of \: cylider = 18cm}$

$\: \: \: \: \: \: \sf{radius \: of \: cylinder = 7cm}$

$\: \: \: \: \: \: \: \sf \red{tsa \: of \: cylinder = \pi {r}^{2} h}$

$= > \: \: \: \: \: \sf { \frac{22}{ \cancel{7} } \times \cancel{ 7} \times 7 \times 18}$

$= > \: \: \: \: \: \: \: \: \: \: 22 \times 7 \times 18$

$= > \: \: \: \: \: \: \: \: \: \: \: \: \: \sf {2772 \: cm { }^{2} }$

Answer 2

Step-by-step explanation:

height=18cm

radious=7cm

Total surface area=2x22/7x7x(18+7)

=44x25=1100 Sq. cm.