Math, asked by kriya8404, 10 months ago

A cylindrical tube open at the ends is made of 3 cm thick. if the external diameter is 42cm and the length of the tube is 140 cm, find the volume of the metal used in it ​

Answers

Answered by DEATH786
3

VOLUME OF CYLINDER =3

DIAMETER OF CYLINDER=42

LENGTH OF TUBE=140

VOLUME OF METAL=?

SUBSTITUTE ALL OF THESE YOU WILL GET YOIR ANSWER

PLZ MARK IT AS BRAINLEAST.

Answered by 01aryan10
7

Answer:

outer diameter = 42 cm

outer radius = 21 cm

inner radius = 18 cm

volume of hollow cylinder = πh (R^2 -r^2 )

= 22/7×140 (441 - 324)

= 22× 20 × 117

= 51480cm^!3

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