Question

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

Answer 1

圆周长=2πr=9.42
圆面积=πr^2=7.065
圆球表面积=4πr^2 =4*3.14*1.5*1.5=28.26
球体体积=4/3πr^3=4/3*3.14*1.5*1.5*1.5=14.13
圆柱体积=圆面积*h=7.065*3=21.195

Answer 2

圆周长=9.42
圆面积=7.065
圆球表面积=4*3.14*1.5*1.5=28.26
球体体积=4/3*3.14*1.5*1.5*1.5=14.13
圆柱体积=3.14*1.5*1.5*3=21.195

Answer 3

public class Cycle
{
public static void main(String[] args)
{
double r = 1.5;
double h = 3;
double pai = 3.14;
double C = 2 * pai * r;
double S = pai * r * r;
double B = S * 2 + C * h;
double VQ = 0.75 * S * r;
double VZ = S * h;
System.out.println("周长"+C+"面积"+S+"球面积"+B+"球体积"+VQ+"圆柱体积"+VZ);

}
}