Write a C program to input length and width of a rectangle and find area of the given rectangle. How to calculate area of a rectangle in C programming. Logic to find area of a rectangle whose length and width are given in C programming.

**Example**

**Input**

Enter length: 5 Enter width: 10

**Output**

Area of rectangle = 50 sq. units

## Required knowledge

Arithmetic operators, Data types, Basic input/output

## Area of rectangle

Area of a rectangle is given by the formula –

Where `l` is length and `w` is width of the rectangle.

## Logic to find area of rectangle

Below is the step by step descriptive logic to find area of rectangle –

- Input length and width of rectangle. Store it in two different variables say
`length`and`width`. - Apply formula to calculate rectangle area i.e.
`area = length * width`

. - Finally, print the value of
`area`.

## Program to find area of rectangle

```
/**
* C program to find area of rectangle
*/
#include <stdio.h>
int main()
{
float length, width, area;
/*
* Input length and width of rectangle
*/
printf("Enter length of rectangle: ");
scanf("%f", &length);
printf("Enter width of rectangle: ");
scanf("%d", &width);
/* Calculate area of rectangle */
area = length * width;
/* Print area of rectangle */
printf("Area of rectangle = %f sq. units ", area);
return 0;
}
```

Output

Enter length of rectangle: 5 Enter width of rectangle: 10 Area of rectangle = 50.000000 sq. units

Happy coding 😉