Mathematics for IGCSE & O level - Similarity (Section 1 - No. 29)
A radio mast of height 12m has a shadow length of 16m. Calculate the height of a tower with a shadow length of 56m.
36 m
42 m
48 m
56 m
Explanation
Scale factor is 56/16. Height = 12 * 56/16 = 42m
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