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 Form 3 Geography online lessons on map work

Drawing section and profiles from topographical maps

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Answer Text:
Drawing section and profiles
1. Identify the given points and name them A and B
2. Joint point A and B using a pencil
3. Take a piece of paper and fold it into two parts
4. Place the papers edge along the line joining A and B
5. Mark all contours and their heights
6. Mark features along A-B e.g. R- river, H- hill, M- mountain
7. Determine the highest and lowest contour height to determine the appropriate vertical scale
8. Draw horizontal axis and mark it A-B
9. Draw vertical axis from A to B
10. Place the edge of folded paper along horizontal axis
11. Use values along vertical axis to plot contour heights. Remember to show features marked along A-B
12. Join plotted points using smooth curve (cross Section)
13. Include title on top vertical and horizontal map scale.


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