# Square Root 144

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Square root of a number implies finding the value of the given number which is raised to an exponent of ‘1/2’. Square root is the radical sign used to represent the notation for a number or an expression. Therefore square root of 144 is represented as ‘√144’. Its value can be calculated by finding the numbers which when multiplied by itselfgives 144. In this case, when 12 is multiplied by 12 we get 144 and similarly, -12 multiplied by -12 also gives ‘144’. Hence square root of 144 = ± 12.

Example 1: What is the square root of 225?

Square root of ‘225’ can be alsorepresented with the radical sign as ‘√225’.

In order to find its value, we need to find the numbers which when multiplied by itself gives ‘225’.

15 * 15 = 225 and we also have -15 * -15 = 225.

This implies that 15 multiplied by itself or -15 multiplied by itself gives 225 as the answer.

Hence, square root of 225, which implies √225 = ±15.

Example 2: What is the square root of 256?

Square root of ‘256’ can be also represented with the radical sign as ‘√256’.

In order to find its value, we need to find the numbers which when multiplied by itself gives ‘256’.

16 * 16 = 256 and we also have -16 * -16= 256.

Therefore 16 multiplied by itself or -16 multiplied by itself gives 256 as the answer.

Hence, square root of 256, which implies √256 = ±16.