C 语言求圆的半径面积,设为double型数据溢出-搜答案-灵鹊做题网

三角形面积为:(a+b+c)r/2

#include#definepi3.141592653intmain(){doubler;printf("输入半径：\n");scanf("%lf",&r);printf("周长为：\n");pri

在输入半径的时候,语句改成scanf("%d",&r);不过你最好将半径定义成float型变量,格式的问题

scanf("%d",&r);

voidmain(){floatr,s,l;floatpi=3.1415;printf("输入一个圆的半径:\n");scanf("%f",&r);if(

#difinepi3.14#includevoidmain(){floatR=1.5,L,S;L=2*pi*R;S=pi*R*R;printf("L=%fL,S=%fS\n");}

拿去慢慢研究吧#includeintmain(void){doubler=3.0,pi=3.14159,s;s=r*r*pi;printf("圆的面积为%lf",s);return0;}

#includeintmain(){intr;printf("请输入r：");scanf("%d",&r);printf("面积是：%f\n",2*3.1415*r*r);return0;}再问：没有

1.#includeintmain(){floatr,s,l,v;printf("请输入半径\n");scanf("%f",&r);s=3.14*r*r;l=2*3.14*r;v=4.0/3.0*3.

2兀r＝c,c＼兀＝2r,2r＊1＼2＝r,所以选C

#includeintmain(){doublea=1.5;doubleb=2.3;doublec,d;c=a+a+b+b;d=a*b;printf("面积为%.2f,周长为%.2f",c,d);re

设外接圆半径为R1,内切圆半径为R2R1-R2=2R1=2R2解方程,R1＝4,R2＝2正三角形的边长＝4√3；高＝6三角形的面积＝4√3×6÷2＝12√3

#includeintmain(){intr=0;floata=0,l=0;scanf("%d",&r);a=r*r*3.14;l=r*2*3.14;printf("面积:%f,周长:%f",a,l)

#include#definepi3.14159main(){doubleL,S,V,A,B;/*L是圆周长,S是圆面积,V是圆球体积,A是圆球表面积,B是圆柱面积*/floatr,h;printf(

面积=πx²=6πx²=66不是完全平方数所以x不是有理数2.44²=5.95362.45²=6.0025所以2.44

#include#includemain(){doublearea,length;doubler=pi=3.1215926area=pi*r*r；length=2*pi*r；}

#include<stdio.h>#define Pi 3.14159double Square(double r){ &nb

#include"stdio.h"#definePI3.141592653//定义πintmain(void){floatC,A,V,r;printf("请输入半径：");//提示输入scanf("%

S=π r ²=100cm²r=√(100/π）cm

半径=根号(1000/3.14)约等于17.85cm