In this tutorial you will learn about the C++ Program to Calculate area of rectangle and its application with practical example.
In this tutorial, we will learn to create a c++ program that find Area of Rectangle using c++ programming
Prerequisites
Before starting with this tutorial we assume that you are best aware of the following C programming topics:
- C++ Operators.
- Functions.
- Basic input/output.
- Basic c++ programming.
What Is Area?
Area measures the space inside any shape.
The extent or measurement of a surface or piece of land.
Area term is used to define the amount of space cover up by a 2D shape or surface.
C++ Program to Calculate area of rectangle
In this program , we will calculate Area of Rectangle of a given Length and Width .First of all user will be prompted to enter Length and Width and afterword passing these value to function to calculate Area of Rectangle.
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#include <iostream> using namespace std; float AreaOfRect(float l, float w) // function to calculate area or rectangle { return (l*w); } int main() { float length, width; // declaring variables dcout<<"please enter Length : "; // taking input width and length. cin>>length; cout<<"please enter Width : "; cin>>width; cout<<"\n Area of Rectangle is : "<< AreaOfRect(length, width); //passing values to function return 0; } |
Output
In the above program, we have first declared and initialized a set variables required in the program.
- length = it will hold entered length.
- width = it will hold entered width.
- l= hold value of length.
- w=hold value of width.
Now let us look process of find area of rectangle step by step.
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- first or all take length and width from user.
- then pass these value of length and width to function AreaOfRect(length, width).
- where in function we calculate area of rectangle using formula (a=l*w).
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- after, calculating area function returns us the area of rectangle or given length and width,
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- Finally in main function we will print the area of rectangle of given values.
