You can measure things with a linear scale. Practically impossible with a non-linear scale.
If you change the scale factor of a geometric figure by a factor "x", that is, keeping the new figure similar to the old one, the perimeter (which is also a linear measurement) will change by the SAME factor "x".Note that any area will change by a factor of x squared.
Linear is a straight line and non linear could be a curve or anything but a straight line
A linear scale is a scale with equal divisions for equal vales, for example a ruler. A non linear scale is where the relationship between the variables is not directly proportional.
Well the scale factor for it needs to be like more adjectives so it has to be Lake the answer is a