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

#define RAD 57.2957795

int main()
{
	double opposite,angle;
	float degrees,adjacent;

	puts("How tall is that tree?");
	printf("How far away is the tree in feet?");
	scanf("%f",&adjacent);
	printf("What angle is it to the tree top?");
	scanf("%f",&degrees);

/* convert degrees to rads */

	angle = (double)degrees/RAD;

/* Get the tree height */

	opposite = tan(angle) * (double)adjacent;

	printf("That tree is %.2f feet tall.\n",opposite);
	return(0);
}