Question

which instrument is used to compare the length in maths

Answer 1

 children are introduced to basic concepts of measurement, including measuring length, weight, and capacity. Measuring precisely is a skill that develops over time and is learned in progressive steps. In learning to measure each attribute, children will move from comparing objects to determine which is longer or shorter, which is heavier or lighter, or which holds more or less, to measuring objects according to standard units of measure.

The section begins with measuring length. Through direct comparison of various objects and pictures, children will learn to determine which is taller, shorter, or longer and which is the tallest, shortest, and longest.

Answer 2

it is metre scale we use there..!