Photo AI
This Contour Map is part of Section C and should be used for the answering of the Geographical Geometry Option (Question C.1) - Leaving Cert DCG - Question C.1 - 2017
Question C.1
This Contour Map is part of Section C and should be used for the answering of the Geographical Geometry Option (Question C.1). **Figure:** Contour map showing eleva... show full transcript
Worked Solution & Example Answer:This Contour Map is part of Section C and should be used for the answering of the Geographical Geometry Option (Question C.1) - Leaving Cert DCG - Question C.1 - 2017
Step 1
Identify the contours and their values
Answer
In the contour map, observe that contours represent lines of equal elevation. Use these lines to identify the elevations at points A, B, and C.
- Point A: The contour line nearest point A indicates an elevation of approximately 50 units.
- Point B: The contour line closest to point B shows an elevation of around 40 units.
- Point C: Analysis of the contour line in the vicinity of point C suggests its elevation is about 55 units.
Step 2
Determine the gradient between points A and B
Answer
To find the gradient between points A and B, use the formula for gradient, which is defined as the change in elevation divided by the horizontal distance between the two points:
In this case, substituting the values from above:
- Elevation at A: 50 units
- Elevation at B: 40 units
- Distance AB: Assuming the horizontal distance is 10 units,
The gradient is: