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()
{
float a = 0.0;
float b = 0.0;
float c = 0.0;
scanf("%f%f%f", &a, &b, &c);
float cir = a + b + c;
float p = cir / 2;
float s = sqrt(p * (p - a) * (p - b) * (p - c));
printf("circumference=%.2f area=%.2f", cir, s);
return 0;
}
