Consider this composite figure.
Marcin applied the formula for the volume of a sphere
to find the volume of the half sphere.
1. V = 743
2. V =
764
4 cm
3. V
256
I cm3
What is the next step Marcin should perform?
What is the volume of the half sphere?
V= cm3

a. Marcin should divide the volume of the sphere by 2.

b.

Step-by-step explanation:

In order to solve this exercise it is important to analize the information given in the exercise.

a. You know that formula that is used to calculate the volume of a sphere is the shown below:

Where "r" is the radius of the sphere.

Based on the data given in the exercise, the radius is:

So, substiting values and evaluating, Marcin get that the volume of the sphere is:

 Then, since he needs to find the volume of a the half sphere, Marcin should divide the volume of the sphere by 2.

b. Applying that procedure, Marcin will get that the volume of the half sphere is the following:

i think it is c, not positive though

step-by-step explanation: