Mathematics for IGCSE & O level - Similarity (Section 1 - No. 40)
A model of a car has a volume of 250 cm³. The actual car has a volume 20 times as large. What is the volume of the real car?
500 cm³
2000 cm³
5000 cm³
50000 cm³
解释
The volume scale factor is not the same as the length scale factor; The real car is 20 times bigger in length. 20*250 = 5000cm²