C Program to Find Area of Trapezium

This C program calculates the area of a trapezium based on the user’s input of the lengths of its two bases and the height.

Problem statement

Write a C program that prompts the user to enter the lengths of the bases and the height of a trapezium. The program should then calculate and display the area of the trapezium.

C Program to Find Area of Trapezium

#include <stdio.h>

int main() {
    float base1, base2, height, area;

    printf("Program to calculate the area of a trapezium\n");

    printf("Enter the length of base 1: ");
    scanf("%f", &base1);

    printf("Enter the length of base 2: ");
    scanf("%f", &base2);

    printf("Enter the height: ");
    scanf("%f", &height);

    area = (base1 + base2) * height / 2;

    printf("The area of the trapezium is: %.2f\n", area);

    return 0;
}

How it works

1. The program prompts the user to enter the lengths of base 1, base 2, and the height of the trapezium.
2. The values are stored in the variables base1, base2, and height respectively.
3. The program calculates the area using the formula (base1 + base2) * height / 2 and stores it in the variable area.
4. Finally, the program displays the calculated area using printf with the format specifier %.2f to display the result with two decimal places.

Input / output