Which of the following is not an enlarging scale?

The representative factor is 4. The actual length is 20 mm. Find the length of the drawing.

Name the type of scale used to measure 3.88 metres:</p>

Choose which one R.F. represents reduced scale drawing?</p>

The scale of a drawing is given as 15:1. What is the representative fraction?

The length of the drawing is 20 cm, the scale is given as 2:1. Find the actual length.

What is not essential information to construct a scale from the following?

What is the formula of the length of the scale?</p>