72 is not a perfect square. It is stood for as 72. The square source of 72 have the right to only be simplified. In this mini-lesson we will discover to discover square root of 72 by long department method in addition to solved examples. Let us see what the square root of 72 is.

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Square source of 7272 = 8.4852Square of 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 root of 72?
4.FAQs on Square root of 72

The original number who square is 72 is the square root of 72. Deserve to you uncover what is the number? It can be viewed that there room no integers whose square gives 72.

72 = 8.4852

To inspect this answer, we can discover (8.4852)2 and we can see the we get a number 71.99861904. This number is very close to 72 when that is rounded come its nearest value.

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

Important Notes:

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

How to uncover the Square root of 72?

There room different methods to discover the square root of any number. We can find the square root of 72 using long department method.Click here to know an ext about it.

Simplified Radical kind of Square root of 72

72 is a composite number. Hence factors of 72 are 1, 2, 3, 4, 6, 8, 9 12, 18, 24, 36, and 72. Once we discover the square source of any number, us take one number from each pair that the exact same numbers native its element factorization and we multiply them. The administrate of 72 is 2 × 2 × 2 × 3 × 3 which has 1 pair of the same number. Thus, the most basic radical form of √72 is 62.

Square root of 72 by Long department Method

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

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


So far we have got 72 = 8.485. Top top repeating this process further, we get, 72 = 8.48528137423857

Explore square roots utilizing illustrations and interactive examples.

Think Tank:

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

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


Radius is found using the formula of area of a circle is πr2 square inches. Through the given information,

πr2 = 72π r2 = 72

By taking the square root on both sides, √r2= 72. We understand that the square source 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 that area the square. Together per the given information,

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

Hence, radius that a circle having actually area 72π square customs is same to the size of a square having area 72 square inches.