Waec Model Questions Vol1 2023 Geography Question 3

Practice practical question 3 from the 2023 Waec Model Questions Vol1 Geography examination. This question covers Latitude and Longitude .

Waec Model Questions Vol1 2023 Geography Practical
Topic: Latitude and Longitude
Question 3 WAEC_MODEL_QUESTIONS_VOL1 • 2023 • GEOGRAPHY • practical

A topographic map of a coastal region is drawn at a scale of 1 : 50 000. Two towns, Ikot and Umu, are marked on the map. Their positions are given in degrees, minutes and seconds as follows: - Ikot: 5° 12' 30" N, 7° 30' 00" E - Umu: 5° 18' 45" N, 7° 38' 15" E Using the map and the latitude‑longitude data, determine the straight‑line distance between Ikot and Umu. Assume the Earth is a sphere with a mean radius of 6371 km and use the approximation that 1° of latitude equals 111 km and 1° of longitude equals 111 km × cos (average latitude). Show all steps and comment on at least two possible sources of error in the determination.

Question Parts

( a )
Convert the coordinates of Ikot and Umu from degrees‑minutes‑seconds to decimal degrees.
( b )
Find the difference in latitude (Δφ) and longitude (Δλ) between the two towns in decimal degrees.
( c )
Calculate the north‑south distance (D_NS) using the latitude difference.
( d )
Calculate the east‑west distance (D_EW) using the longitude difference at the mean latitude of the two towns.
( e )
Determine the straight‑line distance (D) between Ikot and Umu by applying the Pythagorean theorem to D_NS and D_EW.
( f )
State two possible sources of error that could affect the accuracy of the distance obtained.

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Waec Model Questions Vol1 2023 Geography Question 3. It is one of the practical questions from the 2023 Waec Model Questions Vol1 Geography examination.

The question covers Latitude and Longitude .

View More Waec Model Questions Vol1 2023 Geography Questions More Waec Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support