三边求面积用c语言怎么编程?答:c语言已知三角形三边求面积如下:输入:3,4,5,输出:area=6.00,#include<stdio.h>,include<math.h> intmain(void){ floata,b,c,s,area;scanf("%f,%f,%f",&a,&b,&c);s=(a+b+c)/2;area=sqrt(s*(s-a)*(s-b)*(s-c));printf("area=%.2f",area);return 0;} ...
c语言要求输入三角形三条边,输出面积,比如输入345,输出6.0,输入123...答:include <math.h> void main(){ float a,b,c,p,s;printf("请输入三角形三边长:");scanf("%f%f%f",&a,&b,&c);p = (a+b+c)/2;s = sqrt(p*(p-a)*(p-b)*(p-c));printf("三角形面积为:%.1f\n",s);} include <stdio.h>//添加了判断三边能否构成三角形 include <...