Question

a cylinder cylinder kal iron pipe is 21 metre long and its external diameter is 8 cm if the thickness of the pipe is 1 cm and iron rate 8 gram per cm cube find the weight of the pipe​

Answer 1

Answer:

3696 gram or 3.696 kg

Step-by-step explanation:

Volume= πh(R^2 - r^2)= 22/7* 21* (4^2 - 3^2) = 3696 gram = 3.696 kg