124 LearnersLast updated on May 26th, 2025
Square Root of 200000
If a number is multiplied by the same number, the result is a square. The inverse of the square is a square root. The square root is used in fields such as vehicle design, finance, etc. Here, we will discuss the square root of 200000.
What is the Square Root of 200000?
The square root is the inverse of the square of the number. 200000 is not a perfect square. The square root of 200000 is expressed in both radical and exponential form. In the radical form, it is expressed as √200000, whereas (200000)^(1/2) in exponential form. √200000 ≈ 447.213595, which is an irrational number because it cannot be expressed in the form of p/q, where p and q are integers and q ≠ 0.
Finding the Square Root of 200000
The prime factorization method is used for perfect square numbers. However, for non-perfect square numbers, the long-division method and approximation method are used. Let us now learn the following methods:
- Prime factorization method
- Long division method
- Approximation method
Square Root of 200000 by Prime Factorization Method
The product of prime factors is the prime factorization of a number. Now let us look at how 200000 is broken down into its prime factors.
Step 1: Finding the prime factors of 200000 Breaking it down, we get 2 x 2 x 2 x 2 x 5 x 5 x 5 x 5 x 5 x 5: 2⁴ x 5⁶
Step 2: Now we found out the prime factors of 200000. The second step is to make pairs of those prime factors. Since 200000 is not a perfect square, the digits of the number can’t be grouped in pairs to form a complete square. Therefore, calculating 200000 using prime factorization is not straightforward.
Square Root of 200000 by Long Division Method
The long division method is particularly used for non-perfect square numbers. In this method, we should check the closest perfect square number for the given number. Let us now learn how to find the square root using the long division method, step by step.
Step 1: To begin with, we need to group the numbers from right to left. In the case of 200000, we need to group it as 000 and 200.
Step 2: Now we need to find n whose square is less than or equal to 200. We can say n is ‘14’ because 14 x 14 = 196, which is less than 200. Now the quotient is 14, and after subtracting 196 from 200, the remainder is 4.
Step 3: Bring down the next pair of digits, which is 000, to make the new dividend 400.
Step 4: Double the divisor and write it as 28. Now we need to find a digit x such that 28x x is less than or equal to 400. The correct value of x is 1.
Step 5: Subtract 281 from 400, leaving a remainder of 119.
Step 6: Since the dividend is less than the divisor, add a decimal point. Adding the decimal point allows us to add two zeroes to the dividend. Now the new dividend is 11900.
Step 7: The new divisor is 281, and we find x such that 281x x is less than or equal to 11900. The correct value is 4.
Step 8: Subtract 11264 from 11900, leaving a remainder of 636.
Step 9: Continue this method until you obtain two decimal places. So the square root of √200000 ≈ 447.213595.
Square Root of 200000 by Approximation Method
The approximation method is another method for finding square roots; it is an easy method to find the square root of a given number. Now let us learn how to find the square root of 200000 using the approximation method.
Step 1: We have to find the closest perfect squares to √200000. The smallest perfect square less than 200000 is 196000 (√196000 ≈ 442) and the largest perfect square greater than 200000 is 202500 (√202500 = 450). √200000 falls somewhere between 442 and 450.
Step 2: Apply the formula: (Given number - smaller perfect square) / (Larger perfect square - smaller perfect square) Using the formula (200000 - 196000) ÷ (202500 - 196000) = 4000 ÷ 6500 ≈ 0.615 Using the formula, we identified the decimal point of our square root. The next step is adding the value we got initially to the decimal number which is 442 + 0.615 = 442.615 Thus, the square root of 200000 is approximately 447.213595.
Common Mistakes and How to Avoid Them in the Square Root of 200000
Students can make mistakes while finding the square root, such as forgetting about the negative square root or skipping steps in the long division method. Now let us look at a few common mistakes in detail.
Mistake 1
Forgetting about the negative square root
It is important to make students aware that a number has both positive and negative square roots. However, we will be taking only the positive square root, as it is the required one.
For example: √50 = 7.071, there is also -7.071 which should not be forgotten.
Mistake 2
Not adding the square root symbol in proper places
Not using the square root properly is another mistake that children make. To resolve this, we need to teach children that simplifying the numbers inside the square root is important before moving on to the next step.
For Example: √(16 + 9) = √16 + √9 is a wrong method of using roots. The right way of using roots is √(16 + 9) = √25.
Mistake 3
Not finding the correct value of a non-perfect square
The first step that needs to be taught to children is to simplify the numbers inside the square root. This is important so that students do not make mistakes while identifying the approximate value.
For Example: √50 = 7 is wrong; the correct answer is √50 ≈ 7.071067.
Mistake 4
Confusing the square root symbol with the cube root
Students need to be taught the difference between cube root and square root constantly as this will help them avoid mistakes.
For Example: √50 and ∛50 are different.
Mistake 5
Making mistakes in long division
Finding a square root using the long division method involves many steps. Due to this, many students might skip a step accidentally, resulting in a wrong answer at the end of the calculation. This may happen in subtracting or elsewhere.
Square Root of 200000 Examples
Problem 1
Can you help Max find the area of a square box if its side length is given as √80000?
The area of the square is 80000 square units.
Explanation
The area of the square = side².
The side length is given as √80000.
Area of the square = side² = √80000 x √80000 = 282.842 x 282.842 = 80000
Therefore, the area of the square box is 80000 square units.
Problem 2
A square-shaped building measuring 200000 square feet is built; if each of the sides is √200000, what will be the square feet of half of the building?
100000 square feet
Explanation
We can just divide the given area by 2 as the building is square-shaped.
Dividing 200000 by 2 = we get 100000
So half of the building measures 100000 square feet.
Problem 3
Calculate √200000 x 5.
2236.067975
Explanation
The first step is to find the square root of 200000, which is approximately 447.213595, the second step is to multiply 447.213595 by 5. So 447.213595 x 5 ≈ 2236.067975
Problem 4
What will be the square root of (250000 - 50000)?
The square root is 447.213595
Explanation
To find the square root, we need to find the difference of (250000 - 50000) 250000 - 50000 = 200000, and then √200000 ≈ 447.213595. Therefore, the square root of (250000 - 50000) is ±447.213595.
Problem 5
Find the perimeter of the rectangle if its length ‘l’ is √80000 units and the width ‘w’ is 50 units.
The perimeter of the rectangle is approximately 665.684 units.
Explanation
Perimeter of the rectangle = 2 × (length + width) Perimeter = 2 × (√80000 + 50) = 2 × (282.842 + 50) = 2 × 332.842 = 665.684 units.
FAQ on Square Root of 200000
1.What is √200000 in its simplest form?
2.Mention the factors of 200000.
3.Calculate the square of 200000.
4.Is 200000 a prime number?
5.200000 is divisible by?
6.How does learning Algebra help students in Thailand make better decisions in daily life?
7.How can cultural or local activities in Thailand support learning Algebra topics such as Square Root of 200000?
8.How do technology and digital tools in Thailand support learning Algebra and Square Root of 200000?
9.Does learning Algebra support future career opportunities for students in Thailand?
Important Glossaries for the Square Root of 200000
- Square root: A square root is the inverse operation of squaring a number. For example, 4² = 16, and the inverse is the square root: √16 = 4.
- Irrational number: An irrational number cannot be expressed as a simple fraction; its decimal form is non-repeating and non-terminating.
- Principal square root: The principal square root is the positive square root of a number, commonly used in real-world applications.
- Prime factorization: The process of expressing a number as the product of its prime numbers.
- Decimal: A number that consists of a whole number and a fractional part separated by a decimal point, such as 7.86, 8.65, or 9.42.
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Jaskaran Singh Saluja
About the Author
Jaskaran Singh Saluja is a math wizard with nearly three years of experience as a math teacher. His expertise is in algebra, so he can make algebra classes interesting by turning tricky equations into simple puzzles.
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