#include <conio.h>
#include <iostream.h>
#include <iomanip.h>
#include "apstring.h"
#include <math.h>

void getpoints(int &s1x, int &s1y, int &s2x, int &s2y, int &s3x, int &s3y);
void calcdist(int s1x, int s1y, int s2x, int s2y, int s3x, int s3y, double &h, double &side1, double &side2);
void displaytype(double h, double side1, double side2);
int main()
{
int s1x, s1y, s2x, s2y, s3x, s3y;
double h, side1, side2;

   getpoints(s1x, s1y, s2x, s2y, s3x, s3y);
   calcdist(s1x, s1y, s2x, s2y, s3x, s3y, h, side1, side2);
   displaytype(h, side1, side2);

getch();
return 0;
}

void getpoints(int &s1x, int &s1y, int &s2x, int &s2y, int &s3x, int &s3y)
{
 cout<<"Enter the coordinates for point one (x then y) hitting enter after each one."<<endl;
 cin>>s1x;
 cin>>s1y;
 cout<<"Enter the coordinates for point two (x then y) hitting enter after each one."<<endl;
 cin>>s2x;
 cin>>s2y;
 cout<<"Enter the coordinates for point three (x then y) hitting enter after each one."<<endl;
 cin>>s3x;
 cin>>s3y;
}
void calcdist(int s1x, int s1y, int s2x, int s2y, int s3x, int s3y, double &h, double &side1, double &side2)
{
 double d1,d2,d3;
 d1=sqrt(pow((s2x-s1x),2)+pow((s2y-s1y),2));
 d2=sqrt(pow((s3x-s2x),2)+pow((s3y-s2y),2));
 d3=sqrt(pow((s3x-s1x),2)+pow((s3y-s1y),2));
 if(d1>=d2 && d1>=d3)
 {h=d1;
 side1=d2;
 side2=d3;
 }
else if(d2>=d1 && d2>=d3)
 {h=d2;
 side1=d1;
 side2=d3;
 }
 else if(d3>=d2 && d3>=d1)
 {h=d3;
 side1=d1;
 side2=d2;
 }
 cout<<h<<" "<<side1<<"  "<<side2<<endl;
}
void displaytype(double h, double side1, double side2)
{
side1 = double(int(side1*10.00))/10.00;
side2 = double(int(side2*10.00))/10.00;
h = double(int(h*10.00))/10.00;
 if(((side2*side2)+(side1*side1))>(h*h))
 {
  cout<<"     "<<endl;
  cout<<"acute"<<endl;
  cout<<(side2*side2)+(side1*side1)<<" "<<(h*h)<<endl;
 }

 else if(((side1*side1)+(side2*side2))<(h*h))
 {
  cout<<"     "<<endl;
  cout<<"obtuse"<<endl;
 }
   else
 {
  cout<<"     "<<endl;
  cout<<"right"<<endl;
 }
}