- By
**teal** - Follow User

- 115 Views
- Uploaded on

Download Presentation
## PowerPoint Slideshow about ' 5 th Grade Miss Cameron’s Class' - teal

**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

The circumference of a circle is

The distance around a circle

Hint: Circumference remember circle around. Circumference is a circle’s perimeter.

Vocabulary.

The radius is the distance from the center of a circle to any point on a circle.

Hint: It is ½ the diameter

We use Pi as the measurement to help us find the circumference of a circle.

Pi, not Pie!

Two formulas are used in finding the circumference of a circle.

WHEN THE CIRCLE HAS A DIAMETER MEASUREMENT, USE THE FOLLOWING FORMULA.

Circumference = d

4in.

3.14 x 4in.

12.6in.

When the radius of a circle is given, the following formula should be used.

Circumference = 2r

2 x 5cm x 3.14

31.4cm

HINT: You may round to the nearest tenth

Tell me what formula would be used to solve the next five problems.

C = 2 x r x 3.14

C = 3.14 d

C = 2 x r x 3.14

C = 3.14 x d

C = 2 x r x 3.14

Now that we have determined the correct formula for each, let’s work the problems.

Find area

9 ft

15 mm

13 cm

19 ft

By Miss Cameron

Circles, those tricky circles! Pow!

I said those circles.

Those tricky circles! Pow!

Circumference is perimeter; it’s all the same

They just try to trick you with a name game.

Circumference is diameter, the length across

Multiplied by pi

So don’t get lost

Rap with me now, & please don’t slumber.

Area for a circle is radius squared.

So half the diameter and make it squared.

Well you know what to do, so do it now.

Find circumference and area of a circle. POW!

Circles, those tricky circles. POW!

I said those circles, those tricky circles. POW!

Download Presentation

Connecting to Server..