72 is not a perfect square. It is represented as 72. The square root of 72 deserve to only be simplified. In this mini-lesson we will learn to find square root of 72 by long division method in addition to solved examples. Let us see what the square source of 72 is.

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Square root of 7272 = 8.4852Square that 72: 722 = 5184
1.What Is the Square source of 72?
2.Is Square source of 72 rational or Irrational?
3.How to discover the Square source of 72?
4.FAQs top top Square source of 72

The original number who square is 72 is the square root of 72. Have the right to you discover what is that number? It can be viewed that there are no integers whose square provides 72.

72 = 8.4852

To inspect this answer, us can uncover (8.4852)2 and we have the right to see the we get a number 71.99861904. This number is an extremely close come 72 when that rounded come its nearest value.

Any number which is either terminating or non-terminating and also has a repeating pattern in that decimal component is a rational number. We witnessed that 72 = 8.48528137423857. This decimal number is non-terminating and also the decimal component has no repeating pattern. So the is not a reasonable number. Hence, 72 is one irrational number.

Important Notes:

72 lies in between 64 and 81. Hence, 72 lies between 64 and 81, i.e., 72 lies in between 8 and 9.Square root of a non-perfect square number in the easiest radical type can be uncovered using prime factorization method. For example: 72 = 2 × 2 × 2 × 3 × 3. So, 72 = (2 × 2 × 2 × 3 × 3) = 62.

How to find the Square root of 72?

There space different methods to discover the square root of any number. Us can find the square source of 72 utilizing long division method.Click here to know an ext about it.

Simplified Radical form of Square root of 72

72 is a composite number. Hence factors the 72 are 1, 2, 3, 4, 6, 8, 9 12, 18, 24, 36, and also 72. As soon as we uncover the square source of any number, we take one number from every pair that the very same numbers indigenous its element factorization and also we multiply them. The administrate of 72 is 2 × 2 × 2 × 3 × 3 which has actually 1 pair of the same number. Thus, the easiest radical type of √72 is 62.

Square source of 72 by Long division Method

The square root of 72 can be uncovered using the long division as follows.

Step 1: In this step, we pair off digits the a provided number starting with a number at one"s place. We placed a horizontal bar to indicate pairing.Step 2: Now we need to find a number i beg your pardon on squaring provides value much less than or same to 72. As we know, 8 × 8 = 64 Step 3: Now, we have actually to carry down 00 and also multiply the quotient by 2 which provides us 16. Step 4: 4 is written at one"s place of new divisor since when 164 is multiplied by 4, 656 is acquired which is less than 800. The obtained answer currently is 144 and we lug down 00.Step 5: The quotient is now 84 and it is multiply by 2. This gives 168, which climate would become the beginning digit of the brand-new divisor.Step 6: 7 is written at one"s location of new divisor since when 1688 is multiply by 8, 13504 is acquired which is much less than 14400. The obtained answer now is 896 and we bring down 00.Step 7: The quotient is now 848 and also it is multiplied by 2. This gives 1696, which then would end up being the beginning digit of the new divisor.Step 8: 5 is written at one"s ar of brand-new divisor due to the fact that when 16965 is multiply by 8, 84825 is obtained which is much less than 89600. The derived answer now is 4775 and we carry down 00.


So much we have got 72 = 8.485. On repeating this procedure further, we get, 72 = 8.48528137423857

Explore square roots using illustrations and also interactive examples.

Think Tank:

Are -72 and -72 same ?Is -72 a genuine number? 

Example 2: Is the radius the a circle having area 72π square inches equal to length of a square having area 72 square inches? 


Radius is found using the formula the area that a circle is πr2 square inches. By the provided information,

πr2 = 72π r2 = 72

By acquisition the square source on both sides, √r2= 72. We understand that the square root of r2 is r.The square root of 72 is 8.48 inches.

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The length of square is discovered using the formula of area the square. As per the provided information,

Area = length × lengthThus, size = √Area = 72 = 8.48 inches

Hence, radius of a circle having actually area 72π square inch is equal to the size of a square having area 72 square inches.