```
#! /usr/bin/env python
#This program was made so for public use and for educational purposess.
#THIS PART IS NOT THE CODE ITSELF THESE ARE JUST COMMANDS
def menu():
#print the options you have
print "Welcome to Pythagorean Theorem Calculator.py"
print "Please keep in mind that for this program to work you need the lenght of two side of the triangle"
print " "
print "Your Options Are:"
print " "
print "1) If you have the lenght of A and B"
print " "
print "2) If you have the lenght of C and A"
print " "
print "3) If you have the lenght of C and B"
print " "
print "4) Quit Pythagorean Theorem Calculator.py"
print " "
return input ("Choose your option: ")
from math import *
#On this one we have the lenght of A and B and we are trying to find the lenght of C
def AnB(a,b):
print a**2, "+", b**2, "=", a**2 + b**2
print sqrt(a**2 + b**2)
#On this one we have the lenght of A and C and we are trying to find the lenght of B
def CnA(c,a):
print c**2, "-", a**2, "=", c**2 - a**2
print sqrt(c**2 - a**2)
#On this one we have the lenght of B and C and we are trying to find the lenght of A
def CnB(c,b):
print c**2, "-", b**2, "=", c**2 - b**2
print sqrt(c**2 - b**2)
# NOW THE PROGRAM REALLY STARTS, AS CODE IS RUN
loop = 1
choice = 0
while loop == 1:
choice = menu()
if choice == 1:
AnB(input("A: "),input("B: "))
elif choice == 2:
CnA(input("C: "),input("A: "))
elif choice == 3:
CnB(input("C: "),input("B: "))
elif choice == 4:
loop = 0
print "Thankyou fo using Pythagorean Theorem Calculator.py"
#END OF THE PROGRAM
```

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