Last updated on May 26th, 2025
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 8100.
The square root is the inverse of the square of the number. 8100 is a perfect square. The square root of 8100 is expressed in both radical and exponential form. In the radical form, it is expressed as √8100, whereas (8100)^(1/2) in exponential form. √8100 = 90, which is a rational number because it can be expressed in the form of p/q, where p and q are integers and q ≠ 0.
The prime factorization method is used for perfect square numbers. Since 8100 is a perfect square, the prime factorization method is appropriate. We can also use the long division method and approximation method if needed. Let us now learn the following methods:
The product of prime factors is the prime factorization of a number. Now let us look at how 8100 is broken down into its prime factors:
Step 1: Finding the prime factors of 8100 Breaking it down, we get 2 × 2 × 3 × 3 × 3 × 3 × 5 × 5: (2^2) × (3^4) × (5^2)
Step 2: Now we found out the prime factors of 8100. The next step is to make pairs of those prime factors. (2^2) = 2, (3^4) = 3 × 3 = 9, (5^2) = 5
Step 3: Multiplying the results, we get 2 × 9 × 5 = 90 Therefore, the square root of 8100 is 90.
The long division method is particularly useful for large numbers. 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 pairs. In the case of 8100, we group it as 81 and 00.
Step 2: Now we need to find n whose square is 81. We can say n as '9' because 9 × 9 is equal to 81. Now the quotient is 9, and after subtracting 81-81, the remainder is 0.
Step 3: Now let us bring down 00, which is the new dividend. The divisor becomes 90.
Step 4: The new divisor will be 90, and since the remainder is 0, we conclude that the square root of 8100 is 90.
Approximation method is another method for finding square roots, but since 8100 is a perfect square, the approximation method confirms the calculation.
Step 1: Identify the closest perfect squares, √8100 is between √6400 (80) and √10000 (100).
Step 2: Since 8100 is a perfect square, we don't need further approximation as the exact square root is already determined to be 90.
Students can make mistakes while finding the square root, such as forgetting about the negative square root or making errors in the long division method. Here are a few common mistakes in detail:
Can you help Max find the area of a square box if its side length is given as √8100?
The area of the square is 8100 square units.
The area of the square = side^2. The side length is given as √8100. Area of the square = side^2 = √8100 × √8100 = 90 × 90 = 8100 Therefore, the area of the square box is 8100 square units.
A square-shaped building measuring 8100 square feet is built; if each of the sides is √8100, what will be the square feet of half of the building?
4050 square feet
We can divide the given area by 2 as the building is square-shaped. Dividing 8100 by 2 = 4050 So half of the building measures 4050 square feet.
Calculate √8100 × 5.
450
The first step is to find the square root of 8100, which is 90. The second step is to multiply 90 by 5. So, 90 × 5 = 450
What will be the square root of (8100 + 900)?
The square root is 100.
To find the square root, we need to find the sum of (8100 + 900). 8100 + 900 = 9000, then √9000 ≈ 94.87.
Find the perimeter of a rectangle if its length ‘l’ is √8100 units and the width ‘w’ is 20 units.
We find the perimeter of the rectangle as 220 units.
Perimeter of the rectangle = 2 × (length + width) Perimeter = 2 × (√8100 + 20) = 2 × (90 + 20) = 2 × 110 = 220 units.
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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