#include <stdio.h>
int main()
{
float fTop = 0,fBtm = 0,fHeight = 0,fArea = 0;
printf("请输入梯形的上底、下底和高\n");
scanf("%f%f%f",&fTop,&fBtm,&fHeight);
fArea = (fTop + fBtm) * fHeight / 2;
if(fArea > 0)
{
printf("所求梯形面积为%.1f",fArea);
}
else
{
::printf("输入数据有误!");
}
return 0;
}
验证:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d31b0ef41bd5ad6e55651ab382cb39dbb7fd3cce?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)