72 is no a perfect square. It is stood for as 72. The square source of 72 deserve to only it is in simplified. In this mini-lesson we will discover to uncover square source of 72 by long department method along 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 root of 72?
2.Is Square root of 72 reasonable or Irrational?
3.How to discover the Square source of 72?
4.FAQs on Square root of 72

The initial number whose square is 72 is the square root of 72. Can you find what is the number? It can be seen that there are no integers whose square offers 72.

72 = 8.4852

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

Any number i beg your pardon is either terminating or non-terminating and has a repeating pattern in the decimal part is a rational number. We witnessed that 72 = 8.48528137423857. This decimal number is non-terminating and the decimal component 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 between 64 and 81, i.e., 72 lies between 8 and 9.Square root of a non-perfect square number in the easiest radical type can be uncovered using element factorization method. Because that example: 72 = 2 × 2 × 2 × 3 × 3. So, 72 = (2 × 2 × 2 × 3 × 3) = 62.

How to discover the Square root of 72?

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

Simplified Radical kind of Square root 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 discover the square source of any kind of number, we take one number from every pair of the very same numbers indigenous its prime factorization and also we main point them. The factorization of 72 is 2 × 2 × 2 × 3 × 3 which has actually 1 pair of the exact same number. Thus, the simplest radical kind of √72 is 62.

Square root of 72 by Long department Method

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

Step 1: In this step, us pair turn off digits of a given number beginning with a number at one"s place. We placed a horizontal bar come indicate pairing.Step 2: Now we require to discover a number which on squaring provides value much less than or same to 72. Together we know, 8 × 8 = 64 Step 3: Now, we have actually to carry down 00 and multiply the quotient through 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 much less than 800. The acquired answer currently is 144 and we carry 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 starting digit the the new divisor.Step 6: 7 is written at one"s location of new divisor since when 1688 is multiplied by 8, 13504 is derived which is less than 14400. The obtained answer now is 896 and also we lug down 00.Step 7: The quotient is currently 848 and also it is multiply by 2. This gives 1696, which then would become the beginning digit the the new divisor.Step 8: 5 is written at one"s location of brand-new divisor since when 16965 is multiply by 8, 84825 is obtained which is less than 89600. The obtained answer now is 4775 and we lug down 00.


So far we have obtained 72 = 8.485. On repeating this procedure further, we get, 72 = 8.48528137423857

Explore square roots utilizing illustrations and also interactive examples.

Think Tank:

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

Example 2: Is the radius of a circle having actually area 72π square inches same to size of a square having area 72 square inches? 


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

πr2 = 72π r2 = 72

By acquisition the square root on both sides, √r2= 72. We recognize 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 discovered using the formula of area that square. As per the given information,

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

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