定义符号常量计圆的面积，设半径为4.25，π的取值设为3.1415926，输出结果保留两位小数。C语言 ‏

圆的面积是：56.75。代码如下：

#include <stdio.h>
#define PI 3.1415926
#define RADIUS 4.25

int main() {
double area = PI * RADIUS * RADIUS;
printf("圆的面积是：%.2f", area);
return 0;
}

相关问题

定义符号常量计圆的面积，设半径为4.25，π的取值设为3.1415926，输出结果保留两位小数。 ‏

Sure, the area of the circle with a radius of 4.25 is defined as follows:

#define PI 3.1415926
#define RADIUS 4.25

double area = PI * RADIUS * RADIUS;
printf("The area of the circle is %.2f", area);