Mathematics for IGCSE & O level - Similarity (Section 1 - No. 31)
A model aircraft is made to a scale of 1:48. If the area of the wing of the real aircraft is 52 m², what is the area of the wing on the model?
0.0226 m²
22.6 m²
2496 m²
24.96 m²
Paliwanag
The area scale factor is the scale factor squared = 48². The area on the model is 52/(48²) = 0.0226 m²