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# C program to calculate the area of the rhombus

Here, we are going to learn how to calculate the area of the rhombus using C program?

Submitted by Nidhi, on August 05, 2021

## Problem statement

Read both diagonals of the rhombus from the user, and then calculate the area of the rhombus.

**Area of the rhombus formula = ½ × d _{1} × d_{2}**

Where *d _{1}* is the length of diagonal 1 and

*d*is the length of diagonal 2.

_{2}## C program to calculate the area of the rhombus

The source code to calculate the area of the rhombus is given below. The given program is compiled and executed using GCC compile on UBUNTU 18.04 OS successfully.

// C program to calculate the area of rhombus #include <stdio.h> float calcuateAreaOfRhombus(float diagonal1, float diagonal2) { float result = 0.0F; result = 0.5 * diagonal1 * diagonal2; return result; } int main() { float diagonal1 = 0; float diagonal2 = 0; float area = 0; printf("Enter the value of first diagonal: "); scanf("%f", &diagonal1); printf("Enter the value of second diagonal: "); scanf("%f", &diagonal2); area = calcuateAreaOfRhombus(diagonal1, diagonal2); printf("Area of rhombus is: %f\n", area); return 0; }

### Output

RUN 1: Enter the value of first diagonal: 12.3 Enter the value of second diagonal: 25.5 Area of rhombus is: 156.824997 RUN 2: Enter the value of first diagonal: 1.2 Enter the value of second diagonal: 2.3 Area of rhombus is: 1.380000 RUN 3: Enter the value of first diagonal: 123.45 Enter the value of second diagonal: 0.1 Area of rhombus is: 6.172500

### Explanation

In the above program, we created two functions *calcuateAreaOfRhombus()* and *main()*. The *calcuateAreaOfRhombus()* function is used to calculate the area of the rhombus based on given diagonals.

In the *main()* function, read the values of diagonals of the rhombus from the user. Then we called the *calcuateAreaOfRhombus()* function to calculate the area of the rhombus. After that, we printed the result on the console screen.

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