Question

please answer this
by step by step explanation ​

Answer 1

Answer:

volume of cylinder =2πrh

but we now have two diameters

so R = outer diameter = 28/2 = 14

r= inner diameter= 24/2 = 12

now,

volume = 2π( R-r) ×h

=2×22/7 ×( 14-12) ×35

= 70× 3.14 ×2

= 140×3.14

=439.66cm^3

Answer 2

Answer:

volume of cylinder =2πrh

but we now have two diameters

So,

R = outer diameter = 28/2 = 14 r= inner diameter= 24/2 = 12

Now,

volume = 2π( R-r) ×h

=2×22/7 ×( 14-12) ×35

= 70× 3.14 ×2

= 140×3.14

=439.66cm^3