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EARTH AS A SPHERE 9.4 Understand and use the concept of distance on the surface of the earth to solve problems.

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Presentation on theme: "EARTH AS A SPHERE 9.4 Understand and use the concept of distance on the surface of the earth to solve problems."— Presentation transcript:

1 EARTH AS A SPHERE 9.4 Understand and use the concept of distance on the surface of the earth to solve problems

2 Learning Outcomes Find the shortest distance between two points on the surface of the earth.

3 A B (37 o N, 54 o W) (37 o N, 126 o E)

4 A B

5 A B (37 o N, 54 o W) (37 o N, 126 o E) 180 o Answer

6 The distance between A and B = 180 o x 60 = nautical mile

7 A B

8 A B 37 o O AOB Next 0o0o

9 AOB = 180 – (37 o x 2) = 106 o Back

10 The distance between A and B = 106 o x 60 = nautical mile

11 Conclusion The shortest distance from one point to another on the surface of the earth is along a great circle.


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