[" I pipe is "21dm" long "],[" the copper used in "]

A hollow cylindrical pipe is 21dm long.It outer and inner diameters are 10cm and 6cm respectively.Find the volume of the copper used in making the pipe.

A hollow cylindrical pipe is 21 dm long. It outer and inner diameters are 10cm and 6cm respectively. Find the volume of the copper used in making the pipe.

A hollow cylindrical pipe is 21 dm long. Its outer and inner diameters are 10 cm and 6 cm respectively. Find the volume of the copper used in making the pipe.

A hollow cylindrical pipe is 21 dm long. Its outer and inner diameters are 10 cm and 6 cm respectively. Find the volume of the copper used in making the pipe.

A hollow cylindrical pipe is 21dm long.Its outer and inner diameters are 10cm and 6cm respectively.Find the volume of the copper used in making the pipe.

The outer diameter of a pipe is 70 cm and it is 21 m long. Find the cost of painting the outer surface of the pipe at the rate of Rs 10 per square metre

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 weights 8 g/cm^3, then the weight of the pipe is____

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) )

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.

Find the fundamental frequency and the frequency of the third overtone of a pipe 45 cm long. If the pipe is open at both ends (use V=344m//s )