Math, asked by RickHazra99, 1 year ago

A cylindrical tube opened at both the ends is made of iron sheet which is 2 cm thick. If the outer diameter is 16 cm and its length is 100 cm, find how many cubic centimeters of iron has been used in making the cube?

Answers

Answered by siddhartharao77
32

Answer:

8800 cm³ (or) 0.0088 m³

Step-by-step explanation:

Length of pipe = 100 cm.

Outer diameter of the pipe = 16 cm

∴ Outer radius(R) = 8 cm.

Given, Thickness of pipe = 2 cm.

∴ Inner radius(r) = 6 cm(8 - 2).

Now,

Volume of the metal = πR²h - πr²h

= π(R² - r²)h

= 22/7 * 100 * (8² - 6²)

= 22/7 * 100 * 28

= 8800 cm³

= 0.0088 m³.


Hope it helps!


siddhartharao77: :-)
RickHazra99: thanks
siddhartharao77: welcome
Answered by glenghggh
1

Answer:

8800 cm³ (or) 0.0088 m³

Step-by-step explanation:

Length of pipe = 100 cm.

Outer diameter of the pipe = 16 cm

∴ Outer radius(R) = 8 cm.

Given, Thickness of pipe = 2 cm.

∴ Inner radius(r) = 6 cm(8 - 2).

Now,

Volume of the metal = πR²h - πr²h

= π(R² - r²)h

= 22/7 * 100 * (8² - 6²)

= 22/7 * 100 * 28

= 8800 cm³

= 0.0088 m³.

Hope it helps

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