Question

Radius of the Base of a right circular cylinder is 7cm and height is 3 cm. find the total surface area of the cylinder?
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Answer 1

$\bold \pink{answer}$

given in cylinder

r=3 cm

h=7cm

TSA of cylinder=2π(h+r)

=2×22/7×7(7+3)

=2×22×10

=440sq.cms

Answer 2

$\huge{ \underline{ \sf{ \red{given}}}}$

$\rightarrow \: { \bold{r = 3cm}}$

$\rightarrow \: { \bold{h = 7cm}}$

$\huge\underline{ \sf{ \red{formula}}}$

$\boxed{ \bold{tsa \: of \: the \: cylinder = 2\pi \: r(h + r)}}$

$\huge{ \underline{ \sf { \red{solution}}}}$

$= 2\pi \: r(h + r)$

$= 2 \times \frac{22}{7} \times 3(7 + 3)$

$= 2 \times \frac{22}{7} \times 70$

$= 2 \times 22 \times 10$

$\boxed{ = 440}$