C Program to Find Area of Rhombus

In this post, we will learn how to find the area of a rhombus using C Programming language.

Rhombus is a special kind of parallelogram whose all sides are equal.

The area of the rhombus can be calculated with the help of diagonals as given A = ½ x d1 x d2, where d1 = length of the first diagonal and d2 = length of the second diagonal.

We will be using this formula in our program to compute the area of rhombus.

So, without further ado, let’s begin this tutorial.

C Program to Find Area of Rhombus

// C Program to Find Area of Rhombus
#include <stdio.h>
int main(){
    float d1, d2, area;
    
    // Asking for input
    printf("Enter the first diagonal of rhombus: ");
    scanf("%f", &d1);
    printf("Enter the second diagonal of rhombus: ");
    scanf("%f", &d2);
    
    // Calculating area
    area = (d1 * d2) / 2;
    
    // Displaying output
    printf("Area of rhombus: %.2f", area);
    return 0;
}

Output

Enter the first diagonal of rhombus: 12
Enter the second diagonal of rhombus: 15
Area of rhombus: 90.00

How Does This Program Work ?

    float d1, d2, area;

In this program, we have declared three float data type variables named d1, d2,  and area.

    // Asking for input
    printf("Enter the first diagonal of rhombus: ");
    scanf("%f", &d1);
    printf("Enter the second diagonal of rhombus: ");
    scanf("%f", &d2);

Then, the user is asked to enter the length of the first and second diagonal.

    // Calculating area
    area = (d1 * d2) / 2;

We calculate the area of the rhombus using the formula:
Area = (product of diagonals) / 2.

    // Displaying output
    printf("Area of rhombus: %.2f", area);

Finally, the area of the rhombus is displayed on the screen using printf() function.

C Program to Find Area of Rhombus Using Functions

// C Program to Calculate Area of Rhombus Using Functions
#include <stdio.h>
float area_rhombus(float d1, float d2){
    return (d1 * d2) / 2;
}

int main(){
    float d1, d2, area;
    
    // Asking for input
    printf("Enter rhombus first diagonal: ");
    scanf("%f", &d1);
    printf("Enter rhombus second diagonal: ");
    scanf("%f", &d2);
    
    // Calling out function
    area = area_rhombus(d1, d2);
    
    // Displaying output
    printf("Area of rhombus: %.2f", area);
    return 0;
}

Output

Enter rhombus first diagonal: 6
Enter rhombus second diagonal: 8
Area of rhombus: 24.00

Conclusion

I hope after going through this post, you understand how to find the area of a rhombus using C Programming language.

If you have any difficulty while understanding this program, let us know in the comment section. We will be delighted to solve your query.

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