What is the formula for calculating the length of the scale?

If a diagonal scale is to be made with a yard, feet and inch then, how many divisions it has to be made vertically?

Which of the following scales is neither an enlarging nor a reducing scale?

If a diagonal scale is to be made with a meter, decimeter and centimeter then, how many divisions it has to be made vert…

Which of the following scale is a plain scale with fully divided minor divisions?

A plain scale is made to show 9 miles and sub division is furlong. To measure 3 miles and 6 furlongs how many divisions …

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

What is the length of AB in the following scale?