NumericalModerate1.5 marks
7(b)
On a map drawn to a scale of 1:50,000, a rectangular plot of land ABCD has the following dimensions. AB = 6 cm; BC = 8 cm and all angles are right angles. Find:
the actual area of the plot in square km.
Topic: Similarity / scale / maps and models
Previous-year question practice database
Answer
Exam answer
Map area = 6×8 = 48 cm².
Area scale factor = 50,000².
Actual area = 48×50,000² cm² = 12 km².
Answer: 12 km².
Explanation
Areas vary as the square of the linear scale factor.
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