Square of 2.25

The square of a number is the product of the number itself. The square of 2.25 is 2.25 × 2.25. The square of a number can end in any digit, but certain properties hold, such as the square of positive and negative numbers always being positive. For example, 2.52 = 6.25; -2.52 = 6.25.

The square of 2.25 is 2.25 × 2.25 = 5.0625.

Square of 2.25 in exponential form: 2.25²

Square of 2.25 in arithmetic form: 2.25 × 2.25

The square of a number is found by multiplying the number by itself. These are the common methods used to find the square of a number: -

1. By Multiplication Method 
2. Using a Formula 
3. Using a Calculator

In this method, we multiply the number by itself to find the square. The product here is the square of the number. Let’s find the square of 2.25.

Step 1: Identify the number. Here, the number is 2.25.

Step 2: Multiplying the number by itself, we get, 2.25 × 2.25 = 5.0625.

The square of 2.25 is 5.0625.

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: Identify the number and substitute the value in the equation.

Here, ‘a’ is 2.25 So: 2.25² = 2.25 × 2.25 = 5.0625

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 2.25.

Step 1: Enter the number in the calculator Enter 2.25 in the calculator.

Step 2: Multiply the number by itself using the multiplication button (×) That is 2.25 × 2.25

Step 3: Press the equals button to find the answer Here, the square of 2.25 is 5.0625.

Tips and Tricks for the Square of 2.25: 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: -

• The square of a decimal number can end in any digit, unlike integers. 

• The square of a positive number is always positive. 

• The square of a negative number is also positive. 

• If the square root of a number is irrational, the number is not a perfect square. 

• The square root of a perfect square is always a rational number.

• Decimal Number: A number that includes a decimal point, representing a fraction of a whole.

• Exponential Form: A mathematical representation of a number as a base raised to a power, such as 2.25². 

• Square: The result of multiplying a number by itself. 

• Square Root: The value that, when multiplied by itself, gives the original number, such as the square root of 5.0625 is ±2.25. 

• Perfect Square: A number that is the square of an integer or a rational number.