Mathematics for IGCSE & O level - Similarity (Section 2 - No. 35)
The area of a rug is 2.4 times as large as the area of a similar rug. What is the length of the larger rug if the length of the smaller rug is 1.6m?
2.47 m
2.56 m
3.84 m
3.96 m
Explicació
Length scale factor is sqrt(2.4) which is approximately 1.549. 1.6m x 1.549 = 2.47 m