Square Root of 245 - How to Find the Square Root of 245? (2024)

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Did you know that 245 is an odd composite non-perfect square number. It has more than two factors but 245 cannot be expressed as square of a number.In this lesson, we will learn to calculate the square root of 245 by long division method. We will also go through a fewsolved examples and interactive questions related to the square root of 245.

  • Square Root of 245:245= 15.652
  • Square of 245: 2452 = 60,025
1.What Is the Square Root of 245?
2.IsSquare Root of 245 Rational or Irrational?
3.Tips and Tricks
4.How to Find the Square Root of 245?
5.FAQs on Square Root of 245
6.Challenging Questions

What Is the Square Root of 245?

The integer which on squaring gives 245 is thesquare root of 245. There is no such integer which on multiplyingwith itselfgives 245 exactly, hencethe square root of 140 is not a whole number.

Is the Square Root of 245 Rational or Irrational?

The square root of 245 is 15.65247 (approximately) which is a non-recurring and non-terminatingdecimal number. This showsthat 245 is nota perfect square whichproves that the square root of 245 is an irrational number.

Tips and Tricks:

  • The square root of any number n, which is not a perfect square, is alwaysan irrational number. As245 is not a perfect square, the square root of 245 is an irrational number.

How to Find the Square Root of 245?

As245 is not a perfect square, thesquare root of 245is found using the long division method. The simplified radical form of the square root of 245 is given below.

Simplified Radical Form of Square Root of 245

245 isexpressedas theproduct of 49and 5. It is given as:

245= (49× 5) =(7× 7× 5) = 75

As we know, 5is not a perfect square.Henceit stays within the root sign. 49can be written as 7× 7. The number repeated within square root is 7.Thus, the simplified radical form of the square root of 245is 75.

Square Root of 245 by Long Division Method

The square root of 245is found usingthe long division method. The steps to be followed are:

  • Step 1: Pair the digits of 245 starting with a digit at one's place. Put a horizontalbar to indicatepairing.
  • Step 2:Now wefind a number which on multiplicationwithitself gives a product of less than or equal to 1. As we know 1× 1= 1 <2.
  • Step 3:Now, we have to bring down 45 and multiply the quotient by 2. Thisgive us 2. Hence, 2is the starting digit of thenew divisor. We bring down 45.
  • Step 4: 5isplaced atone's place of new divisor because when 25 is multiplied by 5we get 125. The obtained answer now is 20 and we bring down 00.
  • Step 5: The quotient now becomes 15 onmultiplicationby 2gives 30, which becomes the starting digit of the new divisor.
  • Step 6: 6is placed at one's place of new divisor because on multiplying 306 by 6we get 1236. The answer now obtained is 20and we bring 00 down.
  • Step 7: Now the quotient is 15when multiplied by2 gives 30, which will bethe starting digit of the new divisor.
  • Step 8: 6is placed at one's place of the divisor because on multiplying 156 by 6we will get 1836. The answer obtained is 164 and we bring 00 down.
  • Step 9: Now the quotient is 156when multiplied by 2gives 312, which will bethe starting digit of the new divisor.
  • Step 10: 5is placed at one's place of the divisor because on multiplying 3125by 5,weget 15625. The answer obtained is 775 and we bring 00 down.
  • Step 11: Now the quotient is 1565 when multiplied by 2gives 3130, which will bethe starting digit of the new divisor.
  • Step 12: 2is placed at one's place of the divisor because on multiplying 31302by 2,weget 62604. The answer obtained is 14896 and we bring 00 down.

Square Root of 245 - How to Find the Square Root of 245? (1)

Hence,√245= 15.652

Explore square roots using illustrations and interactive examples

  • Square Root of 250
  • Square Root of 256
  • Square Root of 225
  • Square Root of 200
  • Square Root of 100

Challenging Questions:

  • Find the square root of 245 using the long division method up to 8decimal places?
  • Can Mandy express the square root of 245in terms of square root of 735?

Square Root of 245 Solved Examples

  1. Example 1: Evaluate (√245 +45) -(√245 - 25)

    Solution

    As we know,√245 =75.
    (√245 +45) =(75 +45) = 115
    (√245 - 25) =(75 - 25) = 55
    Hence,(√245 +45) -(√245 - 25) =115 -55 = 65.

  2. Example 2: What is the diameter of circle if the area of circle is 245π square inches?

    Solution

    The area of circle is given as πr2.
    Hence, area =πr2 =245π⇒r2 = 245⇒ r =245=15.65 ≈ 15.7inches.
    Diameterof circle= 2r = 2×15.7 = 31.4 inches. Hence, the diamterof circle if the area of circle is 245π square inches is 31.4 inches.

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Square Root of 245 - How to Find the Square Root of 245? (2)

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FAQs on Square Root of 245

What is the square root of 245 in the simplest form?

The square root of 245 in the simplest form is 235.

How do you find the square root of 245?

As 245 is nota perfect square number. Hence, the square root of 245isobtained by using long division method.

What is approximate square root of 245?

The square root of 245 is 15.6524 (approximately).

Is the square root of 245 rational or irrational?

The square root of 245 is irrational.

Is the square root of 245 a real number?

Yes, the square root of 245 is a real number.

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Square Root of 245 - How to Find the Square Root of 245? (2024)
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