) The thickness of a hollow metallic cylinder is 2 cm. It is 42 cm long and its inner
radius is10 cm. Find the volume of metal required to make the cylinder, assuming
it is open at both the ends
Answers
Answered by
0
Answer:
Thickness of cylinder =2cm
Length of cylinder (h) =70cm
Outer Radius (R) =14cm
Then inner Radius(r) =outer Radius - thickness
=14-2
=12cm
Volume of hollow cylinder
=11440cm³
Weight of 1cm³=8gm
So weight of 11440cm³=11440x8
=91520gm
=91520/1000
=91.52kg (1kg=1000gm)
Similar questions