#include int main() { int side1; int side2; int side3; printf("Enter the three sides: "); scanf("%d %d %d", &side1, &side2, &side3); // triangle inequality: summation of the length of any two side must be greater or equal to the length of the third side if ((side1 + side2 >= side3) && (side1 + side3) >= side2 && (side2 + side3) >= side1) { printf("The side lengths satisfy the triangle inequality."); } else { printf("A triangle is not possible with such side lengths."); } }