An iron pipe is 21 m long and its exterior diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weight is 8 g/cm' find the weight of pipe.

A hollow iron pipe is 21 cm long and its exterior diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8g//cm^(3) , then the weight of the pipe is (Take pi = (22)/(7) )

A hollow iron pipe of 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weights "8 g/cm"^(3) , then the weight of the pipe is

A hollow iron pipe is 21cm long and its external diameter is 8cm. If the thickness of the pipe is 1cm and iron weighs 8g/cm3, then the weight of the pipe is (a) 3.6kg (b) 3.696kgquad (c)36kg (d) 36.9kg

A hollow copper pipe is 22 cm long and its external diameter is 28 cm.If the thickness of the pipe is 3 cm and iron weighs 8.5 g/ cm^3 , then the weight of the pipe is closest to:

A hollow iron pipe is 28 cm long and its external diameter is 10 cm.If the thickness of the pipe is 2 cm and iron weighs 5g//cm^(3) , then the weight of the pipe is :

An iron pipe 20cm long has exterior diameter equal to 25cm .If the thickness of the pipe is 1cm, find the whole surface of the pipe.

A cylindrical road roller made of iron is 1 m long. Its internal diameter is 54 cm and the thickness of the iron sheet used in making the roller is 9 cm. Find the mass of the roller, if 1\ c m^3 of iron has 7.8 gm mass. (Use pi=3. 14 )