![]() What data type is used to store the length, width, and area of a rectangle in C?Īns: The float data type is used to store the length, width, and area of a rectangle in C. What is the formula to calculate the area of a rectangle?Īns: The formula to calculate the area of a rectangle is area = length x width. With a solid understanding of this program, you can build upon your C programming skills to attack more complex applications. The program initiates the user to input the length and width of a rectangle, calculates the area using the formula "area = length x width", and then outputs the result. In conclusion, the area of rectangle program in c explains how to use variables, user input, and basic mathematical operations are used. Finally, the calculated area is printed to the console using printf. It utilizes the printf and scanf functions to display prompts and read in user input, respectively. The above C program takes user input for the length and width of a rectangle, calculates the area using the formula "area = length x width", and then outputs the result. ![]() Printf("The area of the rectangle is: %f\n", area) Įxplanation for area of rectangle program in C: Printf("Enter the width of the rectangle: ") Printf("Enter the length of the rectangle: ") Print the calculated area of the rectangle as an output.Įxample Code for Area of Rectangle Program in C.In this step, we calculate the area of the rectangle by multiplying the length and width values.Now, read the length and width values entered by the user from the console.Allow the user to enter the length and width of the rectangle.First, we declare two variables to store the length and width of the rectangle.The algorithm for the area of rectangle program in c: Algorithm for Area of Rectangle Program in C The formula of area of rectangle program in C area = length x width. The program prompts the user to enter the length and width, reads those values and calculates the area, and outputs the result on the console The area of rectangle program in C is a simple program that calculates by using the length and width input by the user. How to the Find Area of Rectangle Program in C? The rectangle area is calculated as the total amount of space it occupies and may be estimated by multiplying its length by its breadth. What is Rectangle?Ī rectangle is a four-sided flat shape where opposite sides of equal length and four right angles. ![]() The last command Console.WriteLine(area) prints the calculated value of the variable area.The area of a rectangle program in C is a fundamental example of how to perform basic arithmetic operations and input/output operations in programming. Again, use Console.Write(…), and not Console.WriteLine(…), and this way the cursor stays on the same line in order to print the calculated area of the square afterwards. The next command Console.Write("Square area = ") prints the given text without going to the next line. The next command var area = a * a keeps in a new variable area the result of the multiplication of a by a. The result is kept in a variable with name a. Actually, it first reads a text (string) using Console.ReadLine() and after that it gets converted to an integer (it is parsed) using int.Parse(…). The next line var a = int.Parse(Console.ReadLine()) reads an integer from the console. We use Console.Write(…), and not Console.WriteLine(…) and this way the cursor stays on the same line. Staying on the same line is more convenient for the user, visually. After the output is printed, the cursor stays on the same line. The first line Console.Write("a = ") prints an informative message, which invites the user to enter the side of the square a. ![]() Later on, we will find out how we can catch these kinds of errors and make the user enter a number again. You will get an error message during runtime (exception). Try to write a wrong number, for example " hello". Here is how the program would work when we have a square with a side length equal to 3: This code demonstrates how we can calculate the square area by the given length of the side: Console.Write( "a = ") Watch a video lesson about calculating square area. For example, let us look at the following program, which reads an integer from the console, multiplies it by itself ( squares it) and prints the result from the multiplication. ![]()
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