#include <stdio.h>
#include <math.h>

int main ()
{
	float high , base , radius , side ;

	printf ("Triangle Area Calculator\n");
    printf ("Enter high : ");
    scanf ("%f", &high);
    printf ("Enter base : ");
    scanf ("%f", &base);
	printf ("Area of Triangle = %.2f ",0.5*base*high);
	printf ("\n-------------------------------\n");

	printf ("Circle Area Calculator\n");
	printf ("Enter Radius : ");
	scanf ("%f",&radius);
	printf ("Area of Triangle = %.2f", M_PI*(radius*radius) );
	printf ("\n-------------------------------\n");

	printf ("Square Area Calcutator\n");
	printf ("Enter Side : ");
	scanf ("%f",&side);
	printf ("Area of Triangle = %.2f", side*side);

	return 0 ;
}