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