Sides of a Triangle

• Problem Description

  
  The mathematics teacher has recently taught the formula for computing the distance between 2 points to her students. She gave them an asssignment on calculating the distance between the points. In order to prevent copying, she gave each student a different set of questions. But she found it very difficult to correct all 100 assignments. She seeks your help. Can you please help her out?
  
  
  Given the vertices of a triangle ABC, determine the sides of the triangle AB, BC and AC. Can you write a C program to calculate the sides?
  
  
  Input Format
  
  Input consists of 6 integers. The first 2 integers correspond to the x-coordinate and y-coordinate of vertex A. The next 2 integers correspond to the x-coordinate and y-coordinate of vertex B. The next 2 integers correspond to the x-coordinate and y-coordinate of vertex C.
  
  
  Output Format:
  
  Refer Sample Input and Output for exact formatting specifications.
  
  [All floating point values are displayed correct to 1 decimal place]

• Test Case 1

  
  Input (stdin)

  5 10
  
  10 10
  
  8 4
  
  

  Expected Output

  Length of side AB is 5.0
  
  Length of side BC is 6.3
  
  Length of side AC is 6.7

• Test Case 2

  
  Input (stdin)

  3 4
  
  4 5
  
  5 6
  
  

  Expected Output

  Length of side AB is 1.4
  
  Length of side BC is 1.4
  
  Length of side AC is 2.8

• Program

• #include <stdio.h>
   #include<math.h>
  
  float distance(int x1,int x2,int y1,int y2)
  {
      float distance;
      distance=sqrt(((x1-x2)*(x1-x2))+((y1-y2)*(y1-y2)));
        return distance;
  };
  int main()
  {
      int x1,x2,x3,y1,y2,y3;
      float a1,a2,a3;
      scanf("%d %d",&x1,&y1);
      scanf("%d %d",&x2,&y2);
      scanf("%d %d",&x3,&y3);
      a1=distance(x1,x2,y1,y2);
      a2=distance(x2,x3,y2,y3);
      a3=distance(x1,x3,y1,y3);
      printf("Length of side AB is %.1f\n",a1);
      printf("Length of side BC is %.1f\n",a2);
      printf("Length of side AC is %.1f\n",a3);
  
  
   return 0;
  }