The volume of metal in a hollow cylindrical pipeis 572 cm3 Its Length is 14 cm and its entertal Radisis 7cm The thickness of the pipe is About the author Autumn
Answer: Volume of a hollow Cylinder =π(R 2 −r 2 )h Given, volume of the hollow cylinder = 7 22 ×(9 2 −r 2 )×14=748cm 3 =>9 2 −r 2 =17 =>81−r 2 =17 =>r 2 =64 =>r=8cm Thickness = Outer radius − Inner radius =9−8=1cm Reply
Answer:
Volume of a hollow Cylinder =π(R
2
−r
2
)h
Given, volume of the hollow cylinder =
7
22
×(9
2
−r
2
)×14=748cm
3
=>9
2
−r
2
=17
=>81−r
2
=17
=>r
2
=64
=>r=8cm
Thickness = Outer radius − Inner radius =9−8=1cm