Last updated on June 2nd, 2025
The product of multiplying an integer by itself is the square of a number. Square is used in programming, calculating areas, and so on. In the topic, we will discuss the square of 490.
The square of a number is the product of the number itself.
The square of 490 is 490 × 490.
The square of a number always ends in 0, 1, 4, 5, 6, or 9.
We write it in math as 490², where 490 is the base and 2 is the exponent.
The square of a positive and a negative number is always positive. For example, 5² = 25; -5² = 25.
The square of 490 is 490 × 490 = 240,100.
Square of 490 in exponential form: 490²
Square of 490 in arithmetic form: 490 × 490
The square of a number is multiplying the number by itself. So let’s learn how to find the square of a number. These are the common methods used to find the square of a number.
In this method, we will multiply the number by itself to find the square. The product here is the square of the number. Let’s find the square of 490.
Step 1: Identify the number. Here, the number is 490.
Step 2: Multiplying the number by itself, we get, 490 × 490 = 240,100.
The square of 490 is 240,100.
In this method, the formula, a² is used to find the square of the number, where a is the number.
Step 1: Understanding the equation Square of a number = a²
a² = a × a
Step 2: Identifying the number and substituting the value in the equation.
Here, ‘a’ is 490
So: 490² = 490 × 490 = 240,100
Using a calculator to find the square of a number is the easiest method. Let’s learn how to use a calculator to find the square of 490.
Step 1: Enter the number in the calculator. Enter 490 in the calculator.
Step 2: Multiply the number by itself using the multiplication button (×). That is 490 × 490
Step 3: Press the equal to button to find the answer. Here, the square of 490 is 240,100.
Tips and tricks make it easy for students to understand and learn the square of a number. To master the square of a number, these tips and tricks will help students.
Mistakes are common among kids when doing math, especially when it is finding the square of a number. Let’s learn some common mistakes to master the squaring of a number.
Find the length of the square, where the area of the square is 240,100 cm².
The area of a square = a²
So, the area of a square = 240,100 cm²
So, the length = √240,100 = 490.
The length of each side = 490 cm
The length of a square is 490 cm. Because the area is 240,100 cm², the length is √240,100 = 490.
A farmer wants to fence a square field with a side length of 490 meters. If the cost of fencing per meter is 5 dollars, how much will it cost to fence the entire field?
The length of the field = 490 meters
The cost to fence 1 meter of field = 5 dollars.
To find the total cost to fence, we find the perimeter of the field.
Perimeter of the field = 4 × a
Here a = 490
Therefore, the perimeter of the field = 4 × 490 = 1,960.
The cost to fence the field = 1,960 × 5 = 9,800.
The total cost = 9,800 dollars
To find the cost to fence the field, we multiply the perimeter of the field by cost to fence per meter. So, the total cost is 9,800 dollars.
Find the area of a circle whose radius is 490 meters.
The area of the circle = 754,247.34 m²
The area of a circle = πr²
Here, r = 490
Therefore, the area of the circle = π × 490² = 3.14 × 490 × 490 = 754,247.34 m².
The area of the square is 240,100 cm². Find the perimeter of the square.
The perimeter of the square is 1,960 cm
The area of the square = a²
Here, the area is 240,100 cm²
The length of the side is √240,100 = 490
Perimeter of the square = 4a
Here, a = 490
Therefore, the perimeter = 4 × 490 = 1,960.
Find the square of 491.
The square of 491 is 241,081
The square of 491 is multiplying 491 by 491.
So, the square = 491 × 491 = 241,081
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.
: He loves to play the quiz with kids through algebra to make kids love it.