C

area of trapezium formula

Area of trapezium (UK) or trapezoid (US) =  (sum of parallel sides) / 2 * height

how to find area of a trapezium

Area = (top+bottom / 2) * height

formula to find the area of a trapezium in c

/* 
     formula is : (base1 + base2) / 2 * height
 */
#include <stdio.h>
int main()
{
     double base1, base2, height, area;
     scanf("%lf %lf %lf", &base1, &base2, &height);

     area = (base1 + base2) / 2 * height; // applying formula
     printf("Area: %0.3lf
", area);
     return 0;
}