C Program to check whether the triangle is Equilateral, Scalene or isosceles using the if-else ladder

/* C Program to check whether the triangle is Equilateral, Scalene or isosceles using the if-else ladder. */

#include<stdio.h>

#include<conio.h>

void main()

{

    int a,b,c;

    clrscr();

    printf("Enter three sides of the triangle: ");

    scanf("%d%d%d",&a,&b,&c);

    if(a==b&& b==c)     //If all sides are equal

    {

    printf("Equilateral triangle.");

    }

    else if(a==b || a==c || b==c) //If two sides are equal

    {

    printf("Isosceles triangle.");

    }

    else                         //If none sides are equal

    {

    printf("Scalene triangle.");

    }

    getch();

}

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OUTPUT:-

Enter three sides of the triangle: 60 60 60

Equilateral triangle.   

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