Question

A cylindrical tube, open at both ends is made of metal. The inner diameter of the tube is 10.4 cm and its length is 25 cm the thickness of metal is 8 mm everywhere. Calculate the volume of the metal in cylinder.

Answer 1

here is your answer. hope this will help you

Answer 2

Answer:

703.36 cubic cm

Step-by-step explanation:

Inner diameter = 10.4 cm

inner radius r = Diameter/2 =10.4/2 =5.2 cm

Thickness = 8 mm = 0.8 cm

Outer radius R = Inner radius +thickness = 5.2+0.8 = 6 cm

Height = 25 cm

Volume of metal used = Outer volume - inner volume

                                    =$\pi(R^2 -r^2)h$

                                    =$3.14(6^2 -5.2^2)25$

                                    =$703.36 cm^3$

Hence the volume of metal used is 703.36 cubic cm