Question

find the volume of a hollow cylinder of external and internal diameter as 16 cm and 14 cm​

Answer 1

Step-by-step explanation:

Given

external radius r

2

=8, height of cylinder h=14

we have,

2πh(r

1

+r

2

)=1320

⟹8+r

1

=

2×22×14

1320×7

⟹r

1

=7cm