3.1.1 3322CD is located .. - NSC Geography - Question 3 - 2022 - Paper 1
Question 3
3.1.1 3322CD is located ... of Mossel Bay on the index sheet.
A south-east
B north-west
C north-east
D south-west
3.1.2 The value of the index contour line F in bl... show full transcript
Worked Solution & Example Answer:3.1.1 3322CD is located .. - NSC Geography - Question 3 - 2022 - Paper 1
Step 1
3.1.1 Locate Mossel Bay
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Answer
The correct answer is C: north-east.
Step 2
3.1.2 Index Contour Line Value
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Answer
The value of the index contour line F in block C2 is B: 100 metres.
Step 3
3.1.3 Area Calculation
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Answer
To calculate the area covered by the orthophoto map, use the formula:
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Answer
The demarcated area appears smaller on the topographic map because the scale of the topographic map is different; it is generally reduced compared to the actual size.
Step 5
3.1.5 Average Gradient Calculation
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Answer
To calculate the average gradient, use the following:
Calculate the vertical interval: 70 m - 20 m = 50 m.
The horizontal equivalent (HE) is 5.4 km, which is equal to 5400 m.
Apply the formula:
ext{Average Gradient} = rac{ ext{VI}}{ ext{HE}} = rac{50 ext{ m}}{540 ext{ m}} ext{ which simplifies to } rac{1}{10.8}
Thus, the average gradient is approximately 1:10.8.
Step 6
3.1.6 Gradient Consideration
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Answer
The average gradient calculated in QUESTION 3.1.5 is generally considered steep.
