Theory
How do you calculate the scale factor?
A scale factor tells how many times larger a length becomes.
Use two corresponding lengths: one in the original and one in the image.
Divide the image length by the original length.
- Take a corresponding length in the image andTake a corresponding length in the image and in the original.
- Divide the image length by the originalDivide the image length by the original length.
Calculate the scale factor from 5 to 12,5.
2,5
2,5
- Take a corresponding length in the image andTake a corresponding length in the image and in the original.
- Divide the image length by the original12,5 ÷ 5 = 2,5.