// David Lippa
// Instructor, CEG 221

#include <math.h>

/*
	PROGRAM DESCRIPTION:

	This program computes the distance between a person and
	an object. The given values in this case are angles
	of 87 degrees and a distance of 2 inches between
	the two eyes.
*/

const double PI = 3.141598624;

double pythagorean(double hyp, double side);
double degreesToRadians(double deg);

int main()
{
	double angleA = 87, angleB = 87;
	double sideC = 2, sideB = 0;
	double distance = 0;

	angleA = degreesToRadians(angleA);
	angleB = degreesToRadians(angleB);

	sideB = sideC * sin(angleB) / sin(180 - angleA - angleB);

	distance = pythagorean(sideB, sideC / 2);

	return 0;
}

double pythagorean(double hyp, double side)
{
	return sqrt(pow(hyp, 2) - pow(side, 2));
}

double degreesToRadians(double deg)
{
	return (deg * PI) / 180;
}