Answer:

Explanation:
The given solid is a hollow cylinder and we are asked to calculate the volume of the solid part
The volume of the solid part is given by
V = π (R² - r²) h
where
R = outer radius
r = inner radius
h = height of the hollow cylinder
Since R² - r² = (R + r)(R - r) we can rewrite the volume equation as
V = π(R + r)(R - r)h (I am only doing this for easier computation manually)
We are given
R = 3.7cm, r = 2.3cm and h = 1m
Note that height is in meters so convert to cm
1 m = 100 cm
So h = 100 cm
Plugging in known values
