Write a program in C to find the perimeter and area of a Triangle.

 // perimeter-area-of-triangle.c

#include <stdio.h>

#include <conio.h>

int main()

{

float side1, side2, base, height;

printf("Enter the first, second side and base: ");

scanf("%f %f %f", &side1, &side2, &base);

printf("Enter the height: ");

scanf("%f", &height);

if (side1!=0 && side2!=0 && base!=0 && height==0)

{

if (side1+side2 > base)

{

printf("\nPerimeter of the triangle is: %f\n", side1+base+side2);

} else

{

printf("Enter valid sides of the triangle.\n");

}

}

else if (side1==0 && side2==0 && base!=0 && height!=0)

{

printf("Area of the triangle is: %f\n", (height*base)/2);

}

else if (side1!=0 && side2!=0 && base!=0 && height!=0)

{

if (side1+side2 > base)

{

printf("\nPerimeter of the triangle is: %f\n", side1+base+side2);

} else

{

printf("Enter valid sides of the triangle.\n");

}

printf("Area of the triangle is: %f\n", (height*base)/2);

}

else

{

printf("Inputs are not valid.\n");

}

getch();

return 0;

}