Mathematics for IGCSE & O level - Ratio And Proportion (Section 5 - No. 2)
The actual height of the tree is 12 meters. In a drawing, the height is represented by a line that is 3 cm long. What is the scale?
1:4
1:40
1:400
1:4000
คำอธิบาย
12m = 1200cm. Thus scale = 3:1200=1:400