Question

The volume of metallic cylindrical pipe is 748cm^3.its length is 14 cm and its external radius is 9cm .find its thickness.

Answer 1

Answer:

Step-by-step explanation:

1)dimensions of a pipe

Height =h=14cm

Radius = r.cm

Given

Volume =748 cm^3

Pi*r^2*h=748

22/7*r^2*h=748

r^2 =(748*7)/(22*14)

r^2=17

r = root 17

r = 4(approximately)

Given external radius R= 9cm

Thickness of the pipe =9-4 =5cm

Answer 2

So the thickness is equal to 2multiply radius
So, thickness is also the diameter
9*2=18
So the thickness of cylinder is 18 cm.
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