117 LearnersLast updated on May 26th, 2025
Square Root of 3809
If a number is multiplied by itself, the result is a square. The inverse of squaring is finding the square root. The square root is used in fields such as vehicle design, finance, etc. Here, we will discuss the square root of 3809.
What is the Square Root of 3809?
The square root is the inverse operation of squaring a number. 3809 is not a perfect square. The square root of 3809 is expressed in both radical and exponential forms. In radical form, it is expressed as √3809, whereas in exponential form it is expressed as (3809)^(1/2). √3809 ≈ 61.718, which is an irrational number because it cannot be expressed as a ratio of two integers.
Finding the Square Root of 3809
The prime factorization method is useful for perfect square numbers. However, for non-perfect square numbers like 3809, the long division method and approximation method are more appropriate. Let us explore these methods:
- Prime factorization method
- Long division method
- Approximation method
Square Root of 3809 by Prime Factorization Method
The prime factorization of a number is the product of its prime factors. However, since 3809 is not a perfect square, its prime factors cannot be paired evenly. Therefore, calculating √3809 using the prime factorization method is not feasible.
Square Root of 3809 by Long Division Method
The long division method is particularly useful for non-perfect square numbers. In this method, we find the closest perfect square numbers for the given number. Let's learn how to find the square root using the long division method, step by step.
Step 1: Group the digits of 3809 from right to left as 09 and 38.
Step 2: Find n such that n^2 ≤ 38. Here, n = 6 because 6^2 = 36.
Step 3: Subtract 36 from 38 to get a remainder of 2. Bring down the next group, 09, making it 209.
Step 4: Double the divisor and write it as 12_. Find n such that 12n × n ≤ 209. n is found to be 1, so 121 × 1 = 121.
Step 5: Subtract 121 from 209 to get 88. Bring down two zeros to make it 8800.
Step 6: The next divisor is 122_. Find n such that 122n × n ≤ 8800. Here, n = 7, so 1227 × 7 = 8589.
Step 7: Subtract 8589 from 8800 to get 211. Add two more zeros to get 21100.
Step 8: Continue the process to get more decimal places.
The quotient becomes approximately 61.718.
Square Root of 3809 by Approximation Method
The approximation method is a straightforward way to estimate square roots. Let's find the square root of 3809 using this method.
Step 1: Identify the perfect squares closest to 3809. The nearest perfect squares are 3600 (60^2) and 3844 (62^2). √3809 is between 60 and 62.
Step 2: Use linear approximation: (3809 - 3600) / (3844 - 3600) = 209 / 244 ≈ 0.856 Step 3: Add this approximation to the lower square root: 60 + 0.856 ≈ 60.856. Therefore, the square root of 3809 is approximately 60.856.
Common Mistakes and How to Avoid Them in the Square Root of 3809
Students often make mistakes while finding square roots, such as forgetting about the negative square root or skipping steps in the long division method. Let's look at some common mistakes in detail.
Mistake 1
Forgetting about the negative square root
Students should remember that a number has both positive and negative square roots. However, we typically consider only the positive square root in practical applications.
For example, √3809 ≈ 61.718, but there is also -61.718.
Mistake 2
Not adding the square root symbol in proper places
A common mistake is misplacing the square root symbol. It's important to simplify numbers inside the square root before proceeding.
For example, √(25 + 9) is not the same as √25 + √9; the correct approach is √(25 + 9) = √34.
Mistake 3
Not finding the correct value of a non-perfect square
Always simplify the numbers inside the square root to avoid errors in estimating values.
For example, √50 ≠ 7; the correct approximation is √50 ≈ 7.071.
Mistake 4
Confusing the square root symbol with the cube root
It's crucial to distinguish between square roots and cube roots.
For example, √64 is different from ∛64.
Mistake 5
Making mistakes in long division
The long division method involves multiple steps, and students may skip a step accidentally, leading to incorrect results. Careful attention to detail is essential at each step.
Square Root of 3809 Examples
Problem 1
Can you help Max find the area of a square box if its side length is given as √3809?
The area of the square is approximately 3809 square units.
Explanation
The area of the square = side^2.
Given the side length as √3809, the area is:
Area = (√3809) × (√3809) = 3809 square units.
Problem 2
A square-shaped building measuring 3809 square feet is built. If each side is √3809, what will be the square feet of half of the building?
Approximately 1904.5 square feet
Explanation
Divide the total area by 2 since the building is square-shaped:
3809 / 2 = 1904.5 square feet.
Problem 3
Calculate √3809 × 5.
Approximately 308.59
Explanation
First, find the square root of 3809, which is approximately 61.718.
Then multiply by 5: 61.718 × 5 ≈ 308.59.
Problem 4
What will be the square root of (3809 + 16)?
The square root is approximately 62.08
Explanation
Calculate the sum: 3809 + 16 = 3825, then find the square root:
√3825 ≈ 62.08.
Problem 5
Find the perimeter of the rectangle if its length ‘l’ is √3809 units and the width ‘w’ is 38 units.
The perimeter of the rectangle is approximately 199.436 units.
Explanation
Perimeter = 2 × (length + width)
Perimeter = 2 × (√3809 + 38)
= 2 × (61.718 + 38)
≈ 199.436 units.
FAQ on Square Root of 3809
1.What is √3809 in its simplest form?
2.Mention the factors of 3809.
3.Calculate the square of 3809.
4.Is 3809 a prime number?
5.3809 is divisible by?
6.How does learning Algebra help students in Singapore make better decisions in daily life?
7.How can cultural or local activities in Singapore support learning Algebra topics such as Square Root of 3809?
8.How do technology and digital tools in Singapore support learning Algebra and Square Root of 3809?
9.Does learning Algebra support future career opportunities for students in Singapore?
Important Glossaries for the Square Root of 3809
- Square root: The square root of a number is a value that, when multiplied by itself, gives the original number. Example: The square root of 16 is 4 because 4 × 4 = 16.
- Irrational number: An irrational number cannot be expressed as a simple fraction, meaning it cannot be written as a ratio of two integers.
- Radical: A symbol (√) used to indicate the square root or nth root of a number.
- Approximation: The process of estimating a number that is close to, but not exact, due to the irrational nature of square roots like √3809.
- Long division method: A step-by-step method for finding square roots by dividing the number into groups, doubling the divisor, and finding successive quotients and remainders.
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About BrightChamps in Singapore
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.
Fun Fact
: He loves to play the quiz with kids through algebra to make kids love it.
