Mathematics for IGCSE & O level - Scale Drawings (Section 1 - No. 13)
A scale drawing of a house has a scale of 1cm: 2m. If a wall in the drawing is 3cm long, how long is the actual wall in real life?
1.5 m
2 m
6 m
9 m
Giải thích
Multiply the length on the drawing by the scale factor.