NumericalModerate1.5 marks
11(a)
A model of a high rise building is made to a scale of 1 : 50.
If the height of the model is 0.8 m, find the height of the actual building.
Topic: Similarity / scale / maps and models
Previous-year question practice database
Answer
Exam answer
Scale model : actual = 1 : 50.
Model height = 0.8 m.
Actual height = 0.8 × 50 = 40 m.
Answer: 40 m.
Explanation
Linear dimensions vary directly with the scale factor.
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