Question

a metal pipe of negligible thickness as radius 21 cm and length 90cm find the outer csa of the pipe

fast solve it!!​

Answer 1

Given :

• Radius of the pipe = 21cm
• Height of the pipe = 90cm
• π = 22/7

To Find :

• Find the curved surface area of the pipe ?

Solution :

• Using Formula :

➣ Curved surface area of pipe = 2πrh

Where,

• r = radius
• h = height

According to the question :

➣ CSA of pipe = 2πrh

➣ CSA of pipe = 2 × 22/7 × 21 × 90

➣ CSA of pipe = 2 × 22 × 3 × 90

➣ CSA of pipe = 44 × 3 × 90

➣ CSA of pipe = 44 × 270

➣ CSA of pipe = 11,880cm²

Hence,

• The curved surface area of the pipe is 11,880cm².

Answer 2

Answer:

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Step-by-step explanation:

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