Question

the raduis of the base of cylinder is 20 CM & height is 30 CM then find the curved surface area of cylinder (take pie = 3.14)​

Answer 1

Answer:

Step-by-step explanation:

Curved surface area of a cylinder = 2$\pi$ r h

= 2 * 3.14* 20 * 30

= 3768 cm²

Answer 2

GIVEN:

• Radius of cylinder = 20 cm
• Height of cylinder = 30 cm

TO FIND:

• What is the curved surface area of cylinder ?

SOLUTION:

To find the CSA of Cylinder, we use the formula:-

$\large{\boxed{\bf{\star \: C.S.A = 2 \pi r h \: \star}}}$

Take π = 3.14

According to question:-

On putting the given values in the formula, we get

➠ C.S.A = 2 $\times$ 3.14 $\times$ 20 $\times$ 30

➠ C.S.A = 6.28 $\times$ 600

❮ C.S.A = 3768 cm² ❯

❝ Hence, the CSA of Cylinder is 3768 cm² ❞

Extra Information:-

✧ Volume of cylinder = πr²h

✧ Total surface area of cylinder = 2πr(h + r)

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