72 is no a perfect square. It is represented as 72. The square source of 72 can only it is in simplified. In this mini-lesson us will find out to discover square source of 72 by long department method together with solved examples. Let united state 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 uncover the Square root of 72?
4.FAQs on Square root of 72

The initial number whose square is 72 is the square root of 72. Deserve to you uncover what is that number? It can be seen that there room no integers whose square provides 72.

72 = 8.4852

To examine this answer, us can uncover (8.4852)2 and we deserve to see that we gain a number 71.99861904. This number is very close come 72 when its rounded come its nearest value.

Any number i beg your pardon is either terminating or non-terminating and also has a repeating pattern in that decimal part is a rational number. We observed that 72 = 8.48528137423857. This decimal number is non-terminating and the decimal part has no repeating pattern. So that is not a rational number. Hence, 72 is one irrational number.

Important Notes:

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

How to find the Square source of 72?

There space different methods to uncover the square source of any kind of number. Us can find the square root of 72 using long division method.Click here to know much more about it.

Simplified Radical type of Square source of 72

72 is a composite number. Hence factors that 72 are 1, 2, 3, 4, 6, 8, 9 12, 18, 24, 36, and also 72. Once we uncover the square source of any kind of number, us take one number from each pair of the same numbers from its element factorization and we multiply them. The factorization 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 root of 72 by Long department Method

The square source of 72 can be found using the long department as follows.

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


So much we have acquired 72 = 8.485. ~ above repeating this process further, us get, 72 = 8.48528137423857

Explore square roots utilizing illustrations and interactive examples.

Think Tank:

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

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


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

πr2 = 72π r2 = 72

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

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The size of square is uncovered using the formula the area that square. Together per the provided information,

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

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