Find the total volume of the following composite figure with

h=4.3

and

r=3.9

Use 3.14 for LaTeX: \piπ.

Round to the nearest hundredth.

Given:

A composite figure consisting of a cylinder with radius r and height h and a half-sphere with a radius r.

To find:

The total volume of the composite figure.

Solution:

To determine the total volume of the figure, we add the volume of the cylinder and the volume of the half-sphere.

The volume of a cylinder,

The given cylinder has a radius of 3.9 units and a height of 4.3 units. Assume π equals 3.14.

The volume of the cylinder, cubic units.

The volume of a half-sphere,

The given half-sphere has a radius of 3.9 units, assume π equals 3.14.

The volume of the half-sphere, cubic units.

The total volume of the composite figure cubic units.

Rounding this off to the nearest hundredth, we get the volume of the cone as 329.54 cubic units.

6 cm

step-by-step explanation:

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64