Answer:
The length of the cylinder's radius is, 4 cm
Explanation:
Volume(V) of the cylinder is given by:
.....[1]
where,
r is the radius and h is the height of the cylinder.
As per the statement:
The volume of a cylinder is 176π cm³ and its height is 11 cm
⇒V = 176π cm³ and h = 11 cm
Substitute the given values in [1] we have;

Divide both sides by
we have;

or

⇒

Therefore, the length of the cylinder's radius is, 4 cm