Question

What is TSA of cylinder??​

Answer 1

Total surface area

The total surface area of a cylinder is equal to the sum of areas of all its faces

$\small{\boxed{\pink{T.S.A \: of \: cylinder </p><p></p><p></p><p>= 2 π {r}^{2} (h+r)}}}$

Solved example

$\huge{ \underline{\red{ \mathbb{ \red{Question}}}}}$

Find the total surface area of a container in cylindrical shape whose diameter is 28cm and height is 15cm.

Solution

Given:

Diameter = 28cm, so radius = 28/2 = 14cm

height = 15cm

$\small{\boxed{ \mathcal{ \green{formula\:used=2πr (h + r)}}}}$

Calculation:

TSA = 2πr (h + r)

=> 2x 22/7 x 14 x (15 + 14)

=> 2 x 22 x 2 x 29

=> 2552 sq.cm

Hence, the total surface area of container is 2552 sq.cm.

$\huge{ \mathcal{ \orange{thanks.</p><p>..}}}$

Answer 2

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$\bf\Huge\red{\mid{\overline{\underline{ ANSWER }}}\mid }$

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$\Large\fbox{\color{purple}{QUESTION}}$

SURFACE AREA VOLUME FORMULAS

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$\Large\fbox{\color{purple}{ SOLUTION }}$

$\Large\mathcal\brown{CYLINDER}$

$\implies \: csa = 2\pi \: r \: h \\ \\ \implies \: tsa = 2\pi \: r(r + h) \\ \\ \implies \: volume \: = \pi \: {r}^{2} h</p><p>$

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