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#include <stdio.h>
#include <math.h>
void main()
{
double a, b, c; /* ä¸è§å½¢çä¸æ¡è¾¹ */
double s;
double area; /* ä¸è§å½¢çé¢ç§¯ */
printf("请è¾å
¥ä¸è§å½¢çä¸æ¡è¾¹(a,b,c)ï¼");
scanf("%lf%lf%lf", &a, &b, &c);
s = (a + b + c) / 2;
area = sqrt(s * (s - a) * (s - b) * (s - c));
printf("ä¸è§å½¢é¢ç§¯ï¼%lf\n", area);
}
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请è¾å
¥ä¸è§å½¢çä¸æ¡è¾¹ï¼a,b,cï¼ï¼3 4 5
ä¸è§å½¢é¢ç§¯ï¼6.000000