Bell ringer 1 27 11
This presentation is the property of its rightful owner.
Sponsored Links
1 / 22

Bell Ringer 1-27-11 PowerPoint PPT Presentation


  • 90 Views
  • Uploaded on
  • Presentation posted in: General

Bell Ringer 1-27-11. Triangle A is dilated to create Triangle B. A B What type of dilation occurred? Calculate the scale factor. Calculate the original area. Calculate the new area. How is the area affected?. 5 cm. 10 cm. 8 cm. 4 cm.

Download Presentation

Bell Ringer 1-27-11

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Bell ringer 1 27 11

Bell Ringer1-27-11

Triangle A is dilated to create Triangle B.

A B

  • What type of dilation occurred?

  • Calculate the scale factor.

  • Calculate the original area.

  • Calculate the new area.

  • How is the area affected?

5 cm

10 cm

8 cm

4 cm


Bell ringer 1 27 11

Triangle A is dilated to create Triangle B.

A B

  • What type of dilation occurred?

  • Calculate the scale factor.

Reduction

5 cm

10 cm

8 cm

4 cm


Bell ringer 1 27 11

Triangle A is dilated to create Triangle B.

A B

  • Calculate the original area.

    4. Calculate the new area.

5 cm

10 cm

8 cm

4 cm


Bell ringer 1 27 11

Triangle A is dilated to create Triangle B.

A B

5. How is the area affected?

Say NO to Oreos!

5 cm

10 cm

The new area is ¼ the size of the original area.

8 cm

4 cm


Quiz 1 27 11

Quiz1-27-11

What is the length of segment BD in the diagram?


Bell ringer 1 27 11

What is the length of segment BD in the diagram?

What is the length of the diagonal?

Diagonal or BD

Leg = 6 units

Leg = 8 units

Right Triangle

To find the length of the diagonal, I used the Pythagorean Theorem. I counted the number of units in each leg, and I squared them. I added the squares of the legs together. I took the square root of the area to find the length of the segment.

The diagonal is 10 units long.


Speed test

Speed Test

1. Get out a dry erase marker.

2. You have 1 minute to complete as many problems as you can.

We will grade in 1 minute.

4. Graph your results. Keep the graph in your notebook.

5. We will do this every day.


Problem of the week word problem

Problem of the Week & Word Problem

#4-3

1. You have 5 minutes to work on the problem of the week and word problem.

2. The problem of the week must follow the Read, Think, Solve, Justify format.

3. When you are finished, turn them in.

4. They are due Friday.


Reach for the stars

Reach for the Stars

Four friends go to dinner. The total bill is $65.23. Rebecca pays $18.11. Isaac pays 30% of the bill. Jasmine pays 1/3 of the bill. Kendall pays the remainder. Which friend pays the majority of the bill?

A. Rebecca

B. Isaac

C. Jasmine

D. Kendall


Class work volume of prisms cylinders

Class Work: Volume of Prisms & Cylinders

You need your notes. Title the notes: Volume of Prisms and Cylinders

I will check your work at the end of class.


Volume

Volume

The amount of “stuff” a container can hold.

  • Area is measured in

    Square units = units2

  • Volume is measured in

    Cubic Units = units3


Volume1

Volume

Follow these steps in order to calculate volume of prisms and cylinders:

  • Identify the type of figure

  • Identify the shape of the base

  • Calculate the area of the base

  • Identify the height

  • Multiply the area of the base by the height

  • Label the answer (remember to cube 3)


Volume2

Volume

5 in

  • Identify the type of figure

  • Identify the shape of the base

  • Calculate the area of the base

  • Identify the height

  • Multiply the area of the base by the height

  • Label (remember to cube 3)

4 in

7 in

Rectangular prism

Rectangle

7(4) = 28 in2

h = 5 in

140 in3


Volume3

Volume

6ft

  • Identify the type of figure

  • Identify the shape of the base

  • Calculate the area of the base

  • Identify the height

  • Multiply the area of the base by the height

  • Label (remember to cube 3)

3 ft

2 ft

Rectangular prism

Rectangle

2(3) = 6 ft2

h = 6 ft

36 ft3


Volume of rectangular prisms

Volume of Rectangular Prisms

Volume = Area of Rectangle (Height)


Volume4

Volume

8yd

3 yd

  • Identify the type of figure

  • Identify the shape of the base

  • Calculate the area of the base

  • Identify the height

  • Multiply the area of the base by the height

  • Label (remember to cube 3)

2 yd

Triangular prism

Triangle

h = 8 yd

24 yd3


Volume5

Volume

8 ft

  • Identify the type of figure

  • Identify the shape of the base

  • Calculate the area of the base

  • Identify the height

  • Multiply the area of the base by the height

  • Label (remember to cube 3)

5 ft

10 ft

Triangular prism

Triangle

h = 5 ft

200 ft3


Volume of triangular prisms

Volume of Triangular Prisms

Volume = Area of Triangle (Height)


Volume6

Volume

4 in

7 in

  • Identify the type of figure

  • Identify the shape of the base

  • Calculate the area of the base

  • Identify the height

  • Multiply the area of the base by the height

  • Label (remember to cube 3)

Cylinder

Circle

h = 7 in

351.68 in3


Volume7

Volume

3 ft

4 ft

  • Identify the type of figure

  • Identify the shape of the base

  • Calculate the area of the base

  • Identify the height

  • Multiply the area of the base by the height

  • Label (remember to cube 3)

Cylinder

Circle

h = 4 ft

113.04 ft3


Volume of cylinders

Volume of Cylinders

Volume = Area of Circle (Height)


Class work

Class Work

Volume of Prisms & Cylinders

Do NOT Write on my sheet!

Show Every Step!!!


  • Login