1. Mrs. Brown Maternity Leave
8th Week 3
Mrs. Brown
Maternity Leave

2. Day 1: Volume of a Cylinder
When finding the volume of a cylinder use the following formula:

3. Example:
V= 3.14(3)(3)(5)
V= 141.3

4. Example
On this example they give you a diameter, you will have to divide that in half since the formula calls for the radius:
R= 5.5
V= 3.14(5.5)(5.5)(16) V=

5. Example
A square bead has a cylinder shape cut out of the middle. If you want to find the volume of the bead, you will need to find the volume of each and subtract:
The cube is 10X10X10 so its V=100
The cylinder has a diameter of 3, so its radius is 1.5
The Cylinders V=3.14(1.5)1.5(10) - they have the same height
Of the cylinder is V=70.65
Therefore is we subtract the Volume of the bead is
= 29.35

6. Example:
When finding the volume of half a cylinder use the given formula and divide by 2!
If the diameter is 10, the radius is 5!
V= 3.14(5)(5)(12)
=942/2= 471
Remember Volume is always in
measurement cubed!

7. Practice
P593 and 594 (1-6)
All practice work may be done with your partner and with a calculator.
If you are not behaving and focusing on the math, this privilege may be taken away by the teacher.

8. Day 2: Volume of a cone
When finding the volume of a cone use the following formula:

9. Example:
V= 1/3(3.14)(3)(3)(11) V=

10. Example
In this example they give you the diameter of 18, so you will need to use the radius of 9.
V= 1/3(3.14)(9)(9)(21) V=

11. Example
When you have more than one figure you need to find the volume of each and then add them together!
Cone: 1/3(3.14)(5)(5)(13)
V=340.17
Cylinder= 3.14(5)(5)(2)
V=157
Total:
497.17

12. Practice:
P601 (1-8)
All practice work may be done with your partner and with a calculator.
If you are not behaving and focusing on the math, this privilege may be taken away by the teacher.

13. Day 3: Volume of a Sphere
When Finding the Volume of a Sphere Use the following Formula:

14. Exmaple:
V= 4/3(3.14)(2)(2)(2) V=

15. Example:
On this example is gives you the diameter of 45, so you will need to cut that in half and use the radius of
V= 4/3(3.14)(22.5)(22.5)(22.5) V=

16. Example:
Half of a Sphere is also called a Hemisphere. You would find the Volume and divide by 2!
V= 4/3(3.14)(6)(6)(6)
V= /2
V=452.16

17. Practice:
P 609 (1-9)
All practice work may be done with your partner and with a calculator.
If you are not behaving and focusing on the math, this privilege may be taken away by the teacher.

18. Day 4: Review Watch the following videos:

19. Practice P595 (10-14) P603 (15-20) P611 (19-22)
All practice work may be done with your partner and with a calculator.
If you are not behaving and focusing on the math, this privilege may be taken away by the teacher.

20. Day 5 Quiz: Use your packet of notes to complete the quiz.
You have 40 minutes.
There are NO RETAKES for open note quizzes!!!