三角形,五角形

#include<graphics.h>
#include<conio.h>
#include<bits/stdc++.h>
using namespace std;
void sans(double x,double y,double w){
	line(x,y,x+w,y);
	line(x,y,x+(w/2),y-(1.732050807569*w/2));
	line(x+w,y,x+(w/2),y-(1.732050807569*w/2));
}
void wujiao(double x,double y,double w){
	line(x,y,x+w*0.618/2,y-w*0.951056516295);
	line(x+w*0.618/2,y-w*0.951056516295,x+w*0.618,y);
	line(x,y,x+w*0.809016994375,y-w*0.587785252292);
	line(x+w*0.618,y,x+w*0.618-w*0.809016994375,y-w*0.587785252292);
	line(x+w*0.618-w*0.809016994375,y-w*0.587785252292,x+w*0.809016994375,y-w*0.587785252292);
}
int main(){
	initgraph(1024,680);
//	setfillcolor(GREEN);
//	solidcircle(500,75,50);
//	solidcircle(800,75,50);
//	solidrectangle(530,175,760,250);
	sans(300,300,200);
	wujiao(500,500,200);
	_getch();
	closegraph();
}