设计一个程序,梯形的上底和下底高分别为8,12,9,计算面积

Question

设计一个程序,梯形的上底和下底高分别为8,12,9,计算面积

Answer 1

给你写一个C语言的吧：
#include
main()
{
float a,b,h,area;
printf("please input the length of trapezoid:\n");
scanf("%f",&a);
printf("please input the width of trapezoid:\n");
scanf("%f",&b);
printf("please input the height of trapezoid:\n");
scanf("%f",&h);
area=(a+b)*h/2;
printf("the area of trapezoid is : %f",area);
getch();
}