C Program To Find Area And Perimeter of Rectangle
Last Updated :
16 Sep, 2022
Here, we will find the area and perimeter of rectangle using a C Program as follows:
Example:
Input:
l = 10
b = 10
Output:
area = 100
perimeter = 40
Explanation:
The formula for the area of a rectangle is
Area = length*breadth => l*b
The formula for the perimeter of a rectangle is
Perimeter = 2*(length + breadth) => 2*(l+b)
Method 1:
C
#include <stdio.h>
int main()
{
int l = 10, b = 10;
printf ( "Area of rectangle is : %d" , l * b);
printf ( "\nPerimeter of rectangle is : %d" , 2 * (l + b));
return 0;
}
|
Output
Area of rectangle is : 100
Perimeter of rectangle is : 40
Method 2:
C
#include <stdio.h>
int main()
{
int l = 10, b = 10;
int A, P;
A = l * b;
P = 2 * (l + b);
printf ( "Area of rectangle is : %d" , A);
printf ( "\nPerimeter of rectangle is : %d" , P);
return 0;
}
|
Output
Area of rectangle is : 100
Perimeter of rectangle is : 40
Method 3: Using functions
C
#include <stdio.h>
int area( int a, int b)
{
int A;
A = a * b;
return A;
}
int perimeter( int a, int b)
{
int P;
P = 2 * (a + b);
return P;
}
int main()
{
int l = 10, b = 10;
printf ( "Area of rectangle is : %d" , area(l, b));
printf ( "\nPerimeter of rectangle is : %d" ,
perimeter(l, b));
return 0;
}
|
Output
Area of rectangle is : 100
Perimeter of rectangle is : 40
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