Inside
This presentation is the property of its rightful owner.
Sponsored Links
1 / 9

A 180 o Protractor PowerPoint PPT Presentation


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

Inside scale from 0 o to 180 o going in an anti-clockwise direction. Outside scale from 0 o to 180 o going in a clockwise direction. A 180 o Protractor. You need to be able to measure an angle to the nearest degree. To help you do this you should always:.

Download Presentation

A 180 o Protractor

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


A 180 o protractor

Inside scale from 0o to 180o going in an anti-clockwise direction.

Outside scale from 0o to 180o going in a clockwise direction.

A 180o Protractor


A 180 o protractor

You need to be able to measure an angle to the nearest degree. To help you do this you should always:

1. Look directly down onto the cross point. (this avoids parallax errors)

2. Always use the protractor in a horizontal manner as shown below.




A 180 o protractor

1

0 on the inside so use inside scale

2

0 on the outside so use outside scale

Measuring Angles with a 180o Protractor

50o

67o


A 180 o protractor

3

4

0 on the inside so use inside scale

0 on the outside so use outside scale

Measuring Angles with a 180o Protractor

120o

135o


A 180 o protractor

Measure each angle in the shapes below.

900

2

3

1

670

670

680

900

900

1120

680

900

460

1120

6

5

4

480

1180

730

1070

900

1010

1010

420

1100

1100

1070

730

Rectangle 3600

Trapezium 3600

Triangle 1800

Parallelogram 3600

Triangle 1800

Pentagon 5400


A 180 o protractor

1

2

4

3

6

5

Estimating Angles


A 180 o protractor

1

2


A 180 o protractor

3

4


A 180 o protractor

Measure each angle in the shapes below.

2

3

1

6

5

4


  • Login