Mathematics for IGCSE & O level - Similarity (Section 1 - No. 44)
An artist makes a model for a large sculpture. It is 24 cm high and the finished sculpture will be 3.6m high. Find the length scale factor.
1/15
1/10
10
15
Giải thích
Convert to same units, 3.6m = 360 cm. scale factor is 360/24 = 15.