Last updated on May 26th, 2025
If a number is multiplied by itself, the result is a square. The inverse operation of finding the square is calculating the square root. Square roots are applied in various fields such as engineering, physics, and statistics. Here, we will discuss the square root of 272.
The square root is the inverse of squaring a number. 272 is not a perfect square. The square root of 272 can be expressed in both radical and exponential forms. In radical form, it is expressed as √272, whereas in exponential form it is expressed as (272)^(1/2). √272 ≈ 16.49242, which is an irrational number because it cannot be expressed as a ratio of two integers.
The prime factorization method is typically used for perfect square numbers. However, for non-perfect square numbers like 272, the long division method and approximation method are commonly used. Let's explore the following methods:
The prime factorization of a number is the product of its prime factors. Let's break down 272 into its prime factors:
Step 1: Finding the prime factors of 272 Breaking it down, we get 2 × 2 × 2 × 2 × 17: 2^4 × 17
Step 2: Now that we have found the prime factors of 272, the next step is to make pairs of those prime factors. Since 272 is not a perfect square, the digits cannot be grouped into pairs that form a perfect square, and thus calculating the square root using prime factorization is not straightforward.
The long division method is particularly useful for non-perfect square numbers. In this method, we find the closest perfect square number to the given number. Let's learn how to find the square root using the long division method, step by step:
Step 1: Start by grouping the digits in pairs from right to left. For 272, we group it as 72 and 2.
Step 2: Find a number n whose square is less than or equal to 2. Here, n is 1 because 1 × 1 ≤ 2. The quotient is 1, and the remainder is 1 after subtracting 1 from 2.
Step 3: Bring down 72 to make the new dividend 172. Double the previous divisor and append a digit (x) to form a new divisor, which is 2x.
Step 4: Find a digit x such that 2x × x ≤ 172. Let x = 6, then 26 × 6 = 156.
Step 5: Subtract 156 from 172, giving a remainder of 16. The quotient is 16.
Step 6: Bring down two zeros to make the new dividend 1600.
Step 7: The new divisor is 320 (since 32 × 5 = 1600), and the next digit of the quotient is 5.
Step 8: Continue this process until you achieve the desired precision. The square root of √272 is approximately 16.49.
The approximation method is a straightforward way to find square roots. Here's how to find the square root of 272 using approximation:
Step 1: Identify the closest perfect squares to 272. The smallest perfect square less than 272 is 256, and the largest perfect square greater than 272 is 289. Thus, √272 is between 16 and 17.
Step 2: Use the formula: (Given number - smaller perfect square) / (Larger perfect square - smaller perfect square) Applying the formula: (272 - 256) / (289 - 256) = 16 / 33 ≈ 0.48
Step 3: Add this decimal to the lower bound: 16 + 0.48 = 16.48 Thus, the approximate square root of 272 is 16.48.
Students often make mistakes when 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 and how to avoid them.
Can you help Max find the area of a square box if its side length is given as √272?
The area of the square is 272 square units.
The area of the square = side².
The side length is given as √272.
Area of the square = (√272)² = 272.
Therefore, the area of the square box is 272 square units.
A square-shaped building measuring 272 square feet is built; if each of the sides is √272, what will be the square feet of half of the building?
136 square feet
To find the area of half the building, divide the total area by 2.
Dividing 272 by 2 = 136.
So half of the building measures 136 square feet.
Calculate √272 × 5.
Approximately 82.46
First, find the square root of 272, which is approximately 16.49.
Then multiply 16.49 by 5.
So, 16.49 × 5 ≈ 82.46.
What will be the square root of (256 + 16)?
The square root is 17.
First, find the sum of (256 + 16). 256 + 16 = 272, and then √272 = 16.49.
Therefore, the square root of (256 + 16) is approximately ±16.49.
Find the perimeter of the rectangle if its length ‘l’ is √272 units and the width ‘w’ is 38 units.
The perimeter of the rectangle is approximately 109.98 units.
Perimeter of the rectangle = 2 × (length + width).
Perimeter = 2 × (√272 + 38).
Perimeter ≈ 2 × (16.49 + 38) = 2 × 54.49 ≈ 109.98 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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