Last updated on May 30th, 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 this topic, we will discuss the square of 390.
The square of a number is the product of the number with itself.
The square of 390 is 390 × 390.
The square of a number always ends in 0, 1, 4, 5, 6, or 9.
We write it in math as 390², where 390 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 390 is 390 × 390 = 152100.
Square of 390 in exponential form: 390²
Square of 390 in arithmetic form: 390 × 390
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 390.
Step 1: Identify the number. Here, the number is 390.
Step 2: Multiplying the number by itself, we get, 390 × 390 = 152100.
The square of 390 is 152100.
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 390.
So: 390² = 390 × 390 = 152100
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 390.
Step 1: Enter the number in the calculator Enter 390 in the calculator.
Step 2: Multiply the number by itself using the multiplication button (×) That is 390 × 390
Step 3: Press the equal to button to find the answer Here, the square of 390 is 152100.
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 comes to 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 152100 cm².
The area of a square = a² So, the area of a square = 152100 cm² So, the length = √152100 = 390 The length of each side = 390 cm
The length of a square is 390 cm.
Because the area is 152100 cm², the length is √152100 = 390.
Sarah is planning to tile her square floor with length 390 feet. The cost to tile a foot is 2 dollars. How much will it cost to tile the entire floor?
The length of the floor = 390 feet The cost to tile 1 square foot of floor = 2 dollars. To find the total cost to tile, we find the area of the floor, Area of the floor = area of the square = a² Here a = 390 Therefore, the area of the floor = 390² = 390 × 390 = 152100. The cost to tile the floor = 152100 × 2 = 304200. The total cost = 304200 dollars.
To find the cost to tile the floor, we multiply the area of the floor by the cost to tile per foot.
So, the total cost is 304200 dollars.
Find the area of a circle whose radius is 390 meters.
The area of the circle = 477,522 m²
The area of a circle = πr²
Here, r = 390
Therefore, the area of the circle = π × 390² = 3.14 × 390 × 390 = 477,522 m².
The area of the square is 152100 cm². Find the perimeter of the square.
The perimeter of the square is
The area of the square = a²
Here, the area is 152100 cm²
The length of the side is √152100 = 390
Perimeter of the square = 4a
Here, a = 390
Therefore, the perimeter = 4 × 390 = 1560.
Find the square of 391.
The square of 391 is 152881.
The square of 391 is multiplying 391 by 391.
So, the square = 391 × 391 = 152881.
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.