Question

find the volume of metal used in making a 1m pipe of external radius 3cm and width 0.5cm

Answer 1

Answer:

So Volume of metal used would be 3846.5 cm³

Step-by-step explanation:

Given:

Radius = 3 cm

Height = 1 m = 100 cm

Width = 0.5 cm

So r = 3+ 0 .5 = 3.5 cm

To Find:

Volume = ?

Solution:

We are given with the formula to find the volume of a pipe by the formula

Volume = π r² h

Now Putting in the values

Volume = 3.14 *(3.5)² * 100

Computing it

Volume = 3846.5 cm³

So Volume of metal used would be 3846.5 cm³

Answer 2

Answer:

864.29

Step-by-step explanation:

sorry but your answer is totally wrong