题解 | #计算三角形的周长和面积#
计算三角形的周长和面积
https://www.nowcoder.com/practice/109a44d649a142d483314e8a57e2c710
#include<stdio.h>
#include<math.h>
int main()
{
double a = 0.0;
double b = 0.0;
double c = 0.0;
scanf("%lf %lf %lf",&a,&b,&c);
//计算周长
double circumference = 0.0;
circumference = (a+b+c);
//计算面积
double area = 0.0;
double p = circumference/2;
area = sqrt(p*(p-a)*(p-b)*(p-c));
printf("circumference=%.2lf area=%.2lf\n",circumference,area);
return 0;
}
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