Draw a straight line . Take two units of the desired on the line and then draw a vertical line from the point where the second unit ends . Take again two units of the same length taken in the first one , on the the second line. Now you will get two arms of a triangle then draw the hypotenuse . After getting a right angled triangle, you make a arc from that point were the hypotenuse of the triangle and the second line meet. Remember, you will keep your compass 's pin on the point were ninety degree is made. At last the place were the arc ends on the first line that poi t is root 4 on number line.

Locating Root 4 on the Number Line
Locating the square root of 4 on the number line involves understanding the concept of square roots and how they relate to the number line.

Understanding Square Roots
- The square root of a number is a value that, when multiplied by itself, gives the original number.
- In the case of the square root of 4, it is denoted as √4 and equals 2, as 2 x 2 = 4.

Locating Root 4 on the Number Line
- To locate the square root of 4 on the number line, start at 0 and move to the right until you reach 4.
- Since the square root of 4 is 2, you would find the point 2 on the number line.
- This point represents the square root of 4, as it is the value that, when squared, equals 4.

Visual Representation
- Visually, the point representing √4 (2) would be placed at a distance of 2 units from 0 on the number line.
- This helps in understanding the relationship between the square root of 4 and its position on the number line.