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**Area of Square Program in C# with Examples**

In this article, I am going to discuss **how to calculate the Area of a Square in C#** with Examples. Please read our previous article, where we discussed the **Area of Rectangle Program in C#**. Here, in this article, first, we will discuss what is Square, then we will discuss how to calculate the area of a square and finally, we will see how to implement the area of the square program in C#.

**What is a Square?**

According to **Wikipedia**, in geometry, a square is a regular quadrilateral, which means that it has four equal sides and four equal angles (90-degree angles, or 100-gradian angles or right angles). It can also be defined as a rectangle in which two adjacent sides have equal lengths. A square is a closed, two-dimensional shape with 4 equal sides and four right angles.

**How to Calculate the Area of a Square?**

Area of square = side * side Or

A=S * S, where, A is the area of the square and S is the side of the square

**For example:** Let say S i.e. side = 5, then the area of the square is 25 i.e. 5 * 5

Explanation: area of the square is the multiply of side with side

In this program, we can use the following Datatype

**int**: Integer variables are variables that must take an integer value (0, 1, 2, …). Example: variables int num1 = 5**float**: Floating-point numbers are used for decimal and exponential values. It is a primitive data type. Example: variables float num1 = 5.5

**Logic to Calculate the Area of Square in C# **

For finding the area of the square we will multiply simply side with itself. The following are the steps that we need to follow to solve this problem.

- First, we will define side S.
- Then define the area of square A.
- Then calculate the area of the square by multiplying side(S) with side(S).
- After multiplying, the result will assign in A and show the output.

**Example: Area of Square Program in C#.**

The following C# Program will calculate the area of the square.

using System; public class AreaOfSquare { public static void Main() { int Side = 10; int Area = Side * Side; Console.WriteLine($"Area of Square with side {Side} is {Area}"); Console.ReadKey(); } }

**Output: Area of Square with side 10 is 100 **

**Example: Area of Square Program in C# by taking input from the user**

The following C# Program will allow the user to input the side of the square and then calculate the area and display it on the console.

using System; public class AreaOfSquare { public static void Main() { Console.WriteLine("Enter the Side of Square: "); int Side = Convert.ToInt32(Console.ReadLine()); int Area = Side * Side; Console.WriteLine($"Area of Square with side {Side} is {Area}"); Console.ReadKey(); } }

**Output**

**Time Complexity: O(1) **

In the next article, I am going to discuss the **Area of the Triangle Program in C#** with Examples. Here, in this article, I try to explain **how to calculate the Area of a Square in C#** with Examples and I hope you enjoy this Area of Square Program article.