Question

the inner and Outer walls of a 30 M long pipe have a diameter of 15 cm and 17 cm respectively find the volume of the material used in pipe

Answer 1

Answer:

Step-by-step explanation:

Formula for calculating volume of cylinder is πr^2h

Outer r - inner r

πh. Outer^2-innrrR^2

22/7×30×8.5^2-7.5^2

=22/7×30×16.03

=22×30×2.29

=1519.4

Answer 2

Answer:

here's is your answer

...