Summary
Summary Mapwork Calculations
- Course
- Geography
- Institution
- 12th Grade
Really helpful, easy to understand, step by step explanation on each section, enough to ace that mapwork calculations component
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Mapwork made easyCalculations:
Distance:
Measure centre of trig beacon/train station
Topographical map- convert 50 000
Distance0.5 =Km
Distance500=m
Orthophoto map- convert 10 000
Distance0.1=Km
Distance100=m
Area
To accurately measure the area, draw a tight fitted quadrangle around the site
1. Length×scale=
2. breadth×scale=
3. length×breadth= distance squared
Gradient
Gradient is measured by taking the horizontal distance and dividing it by the
vertical height.
Difference In vertical height: Horizontal distance
Highest- lowest: distancescale(m)
• 500m-300m:6cm500
• 𝟐𝟎𝟎𝒎:3000m
200m: 200m
• 1:1.5
1
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