#!/usr/bin/python

from math import *

print "Enter Diagonal:  ",
h = float(raw_input())
print "Enter Width (can be part of a ratio.  For 16:9 for example, enter 16): ",
a = float(raw_input())
print "Enter Height (similar to above):",
b = float(raw_input())
x = sqrt( pow(h, 2) / (pow(a, 2) + pow(b, 2)))
a = a * x
b = b * x
area = a * b
print "side a = %f" % a
print "side b = %f" % b
print "Visible area = %f" % area