C语言-求圆周长\圆面积\圆球表面积\圆球体积\圆柱体积

设圆半径r=1.5,圆柱高h=3,求圆周长\圆面积\圆球表面积\圆球体积\圆柱体积,用scanf输入数据,输出计算结果,输出是要求文字说明,取小数点后2为数字.

#include "stdio.h"
#include "math.h"
#define PI 3.14
void main ()
{
float r,h;
double circle,area,s_area,v_ball,v_yuanzhu;

printf("请输入圆半径和圆柱高\n");
scanf("%f%f",&r,&h);
circle=2*PI*r;
area=PI*r*r;
s_area=4*area;
v_ball=4.0/3*area;
v_yuanzhu=area*h;
printf("circle=%6.2f\tarea=%6.2f\ts_area=%6.2f\tv_ball=%lfv=%6.2f",circle,area,s_area,v_ball,v_yuanzhu);

}