Your SlideShare is downloading. ×
Taking bearings
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Taking bearings

2,024
views

Published on

Published in: Education, Business, Technology

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
2,024
On Slideshare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
0
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Bearings Using a protractor to calculate bearings for the IGCSE examination
  • 2. Bearings… • Tell us in what direction something is • Are more accurate than using compass points • Always measure the angle clockwise from North
  • 3. Matching compass points… 000° 023° 045° 068° 090° 113° 225° 158° 180° 338° 315° 293° 270° 248° 135° 203°
  • 4. Important! Always pay attention to the direction you will be taking the bearing from The bearing of A to B will be completely different to the bearing B to A.
  • 5. Measuring bearings… Find the bearing of B from A. • Mark the North line on at A (if there isn’t a North line draw one in) • Measure the angle clockwise from the North line to B A B x x • Draw the line connecting A to B.
  • 6. Measuring bearings… Find the bearing of B from A. • Place your protractor over the north line with 0° at the top. • Give the answer as a three- figure bearing The bearing of B from A is 135°. A B
  • 7. Measuring bearings… Find the bearing of A from B. • Mark the North line on at B (if there isn’t a North line draw one in) • Measure the angle clockwise from the North line to A A B x x • Draw the line connecting B to A.
  • 8. Measuring bearings… Find the bearing of A from B. • Place your protractor over the north line with 0° at the bottom. • The angle has gone past 180° so you will need to add your measurement to 180° A B x x • Because you are measuring clockwise you need to measure the exterior angle.
  • 9. Measuring bearings… Find the bearing of A from B. • The measurement from the bottom 0° is 135°. The bearing of A from B is 315°. A B x x • 135° + 180° = 315°. 135 °