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  • What is the Square Root of 120 or โˆš๐Ÿ๐Ÿ๐ŸŽ ?ย 
  • How to Find the Square Root of 120? ย 
    • 1. Prime Factorization Methodย 
    • 2. Long Division Methodย 
    • 3. Using a Calculatorย 
  • Properties of Square Root of 120
  • Applications of Square Root of 120
  • Square Root of 120 FAQs
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Square Root of 120
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Square Root of 120

By Karan Singh Bisht

|

Updated on 29 Apr 2025, 12:24 IST

The square root of a number is one of the most useful fundamental concepts in mathematics. It represents a value of a number multiplied by itself, to give the original number. In this article, we will explore the square root of 120, its properties, methods of calculation, and applications.

What is the Square Root of 120 or โˆš๐Ÿ๐Ÿ๐ŸŽ ? 

The square root of 120 is a number that equals 120, when multiplied by itself. Mathematically, it is represented as: โˆš120 The โˆš120 is an irrational number as it cannot be expressed in ๐‘/ ๐‘ž , where ๐‘ and ๐‘ž are integers and ๐‘ž โ‰  0, its decimal representation is non-terminating and non-repeating. Itโ€™s approximate is: โˆš120 = 10.9544511501 (approx.)

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How to Find the Square Root of 120?  

There are several methods to calculate โˆš120 , below, discussed some of the commonly used methods:

1. Prime Factorization Method 

Prime factorization is a method where we represent a number as a product of its prime factors. Since 120 is not a perfect square, this method will not yield an exact value but can get a simplified expression.

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  • Factorise 120 into its prime factors: 

120 = 2ร—2ร—2ร—3ร—5=23ร—3ร—5 

  • Pairing the prime factors:

 โˆš120 =โˆš22ร—2ร—3ร—5 

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  • On simplifying: 

โˆš120 =2โˆš30 =2โˆš30 โ‰ˆ10.954 

Hence, this method is useful in showing that โˆš120 form as 2โˆš30 .

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2. Long Division Method 

The long division method is a step-by-step approach to finding the square root of any number, especially useful in finding a square root of non-perfect squares like 120.

  1. Pair the digits of 120 from right to left (120 โ†’ 1 20).
  2. Find the largest number whose square is less than or equal to the first pair (1). Here, it is 1.
  3. Subtract the square of this number from the first pair and bring down the next paired number (20).
  4. Double the divisor and find a digit that, when added to the divisor and multiplied by the same digit, is less than or equal to the new dividend.
  5. Repeat the process to get the square root and to achieve the desired level of accuracy.

3. Using a Calculator 

For quick and accurate results, a scientific calculator is the most efficient tool. Simply enter 120 and press the square root (โˆš) button to get the approximate value: โˆš120 =2โˆš30 โ‰ˆ10.954

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Properties of Square Root of 120

  1. Irrational Number: The square root of 120 is irrational because it cannot be expressed as a fraction of two integers.
  2. Simplified Form: The square root of 120 can be expressed as 2โˆš30
  3. Decimal Approximation: The approximate value of โˆš120 is 10.954.
  4. Non-Perfect Square: Since 120 is not a perfect square, โˆš120.
Also Check
Associative Property
Centroid of a Triangle
Collinear Points
Commutative Property
Cos 0
Hypotenuse

Applications of Square Root of 120

The square root of 120 has practical applications in various fields, including:

  1. In geometry: Calculating the side lengths of squares or rectangles with an area of 120 square units.
  2. In physics: Determining magnitudes in equations involving squares, such as energy or force calculations.
  3. In Engineering: Solving problems related to design and measurements.
  4. In finance: Used in statistical models and risk assessments.

Square Root of 120 FAQs

What is the square root of 120?

The square root of 120 is approximately 10.95445.

How is the square root of 120 calculated?

The square root of 120 is found by using a calculator or by applying numerical methods to approximate the value.

Is the square root of 120 a rational or irrational number?

The square root of 120 is an irrational number since it cannot be expressed as a fraction of two integers.

How can I verify the accuracy of the square root of 120?

You can verify the accuracy of the square root of 120 by squaring the approximate value (10.95445) and checking if it is close to 120.

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