Neco 2019 Geography Question 3

Practice practical question 3 from the 2019 Neco Geography examination. This question covers Latitude and Longitude .

Neco 2019 Geography Practical

Topic: Latitude and Longitude

Question 3 NECO • 2019 • GEOGRAPHY • practical

A topographic map of the River Niger basin is drawn at a scale of 1 cm : 5 km. The map shows the following coordinates (in degrees, minutes):\n\n- Town A: 5°12' N, 7°30' E\n- Town B: 5°45' N, 8°10' E\n\nUsing the map and the given coordinates, answer the following:

Question Parts

( a )

Determine the difference in latitude (Δφ) and longitude (Δλ) between Town A and Town B in decimal degrees.

( b )

Using the fact that 1° of latitude equals 111 km and at the mean latitude (5°28' N) 1° of longitude equals 111 km × cos 5.47°, calculate the straight‑line (great‑circle approximated) distance between the two towns. Show all steps.

( c )

A survey road is constructed from Town A to Town B following a bearing of N30°E. Assuming the road follows a straight line, estimate the length of the road and comment on the possible error compared with the straight‑line distance calculated in part (b).

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About This Question

This is Neco 2019 Geography Question 3. It is one of the practical questions from the 2019 Neco Geography examination.

The question covers Latitude and Longitude .

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