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Cross section

Cross section. It is supposed a hill has been cut vertically, then we can see the side view, or cross section of the hill A section is a slice vertically down through the land. A cross section shows the shape of the lands. View from the side. View from the top. Cross section.

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Cross section

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  1. Cross section • It is supposed a hill has been cut vertically, then we can see the side view, or cross section of the hill • A section is a slice vertically down through the land. • A cross section shows the shape of the lands.

  2. View from the side View from the top

  3. Cross section • It is supposed a hill has been cut vertically, then we can see the side view, or cross section of the hill. • A cross section can tell us the shape of the hill.

  4. Cross Section • Draw a straight line connecting the two points (X & Y).

  5. Cross Section • Take a strip of paper along the straight line • Mark point X and point Y on the edge of the paper

  6. Cross Section • On the paper strip, mark the position of X and Y • Mark all the contour lines and their heights between the two points

  7. Cross Section • Draw a frame for the cross section. • The length of the base line is the same as the length of the straight line • The two points X and Y also is marked on the two ends of the base line. M

  8. Cross Section The height must be started at 0 unit • Decide the vertical scale of the cross section. • On the left-hand side of the frame, mark the height at the regular interval. • The highest mark must just be higher than the one on the paper strip. M

  9. Cross Section M • On the frame, draw the horizontal lines for each height interval. • On the top of the left hand side of the frame, mark ‘meter’ for the unit of the height • Put the paper the strip at the bottom of the frame, with X and Y touching both ends.

  10. Cross Section • Use a pencil to draw a perpendicular line from each marking on the paper strip unit it reaches the horizontal line with the same height. • Mark a small “x” on the horizontal line. • Join all the points with a smooth line.

  11. Cross Section

  12. Y X metres 30 20 10 0

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