Question

编写一个程序,输入梯形的上底、下底和高的值,计算并输出其面积

请写完整

Answer 1

什么语言 c#

public float getArea(float up,float down,float height)//传入up上底，down下底，height高
{
//计算返回面积
return ((up+down)*height)/2;

}
直接调用 些方法

Answer 2

import java.util.*;

public class CountTrapezoidArea {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.println("请输入上底、下底、高:");
int i = in.nextInt();
int j = in.nextInt();
int k = in.nextInt();
System.out.println("面积是" + (i+j)*k/2);
}
}

Answer 3

#include "stdio.h"
void main()
{
int a,b,h;
float mj;
scanf("%d%d%d",&a,&b,&h);
mj=(a+b)*h/2.0;
printf("mianji=%f",mj);
}