Question

Find the volume of cylinder of length 21 and radius 3cm.​

Answer 1

Step-by-step explanation:

Given:-

• length =height =21
• radius =3cm

formula:-

• volume of cylinder
• $= \pi {r}^{2} h$

Solution:-

$volume \: of \: cylinder \Rrightarrow \pi {r}^{2} h \\ \Rrightarrow \red{ \frac{22}{ \cancel{7}} \times 3 \times 3 \times \cancel{ 21 }} { \: }^{3} \\ \Rrightarrow \green{\rm( \: 22 \times 3 \times 3 \times 3)} \\ \Rrightarrow \dag{\boxed{\mathfrak{594 {cm}^{2} }}} \bigstar$

Answer 2

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Known :

• length = 21 cm
• radius = 3 cm

Asked :

• Volume .?

Answered :

V = πr²t

V = 3,14 × 3² × 21

V = 3,14 × 9 × 21

V = 28,26 × 21

V = 593,46 cm³

- Marisa Cha ✨