import math
from random import randint

print("\nProgram calculates the perimeter and area of different shapes. Let's begin!")

burger = randint(1, 100)
retry = ""

while retry == "":
    print("\nChoose a shape:")
    shape = input("Square (S), Rectangle (R), Circle (C), Triangle (T), or Trapezium (Z): ").upper()
    
    if shape == "S":
        side = float(input("\nEnter the length of a side: "))
        area = side ** 2
        perimeter = side * 4
        print(f"\nThe perimeter of the square is {perimeter} and the area is {area}")
        
    elif shape == "R":
        l = float(input("\nEnter the length: "))
        w = float(input("Enter the width: "))
        area = l * w
        perimeter = 2 * (l + w)
        print(f"\nThe perimeter of the rectangle is {perimeter} and the area is {area}")
        
    elif shape == "C":
        radius = float(input("Enter the radius: "))
        area = math.pi * (radius ** 2)
        circumference = 2 * math.pi * radius
        print(f"\nThe circumference is {circumference:.2f} and the area is {area:.2f}")
        
    elif shape == "T":
        print("\nThe area:")
        base = float(input("\nEnter the base: "))
        height = float(input("Enter the height: "))
        print("\nThe perimeter:")
        s1 = float(input("\nEnter side 1: "))
        s2 = float(input("Enter side 2: "))
        s3 = float(input("Enter side 3: "))
        area = 0.5 * base * height
        perimeter = s1 + s2 + s3
        print(f"\nThe perimeter of the triangle is {perimeter} and the area is {area}")      
    if shape == "z":
        print("You will need to add all of the sides plus the height for an accuratequasion")
        a = float(input("Enter top base (a): "))
        b = float(input("Enter bottom base (b): "))
        h = float(input("Enter height (h): "))
        s1 = float(input("Enter side 1: "))
        s2 = float(input("Enter side 2: "))
        area = ((a + b) / 2) * h
        perimeter = a + b + s1 + s2
        print(f"\nThe perimeter of the shape is {perimeter} and the area is {area}")

        
    else:
        print("Invalid option. Invalid selection.")
        
    retry = input("\nDo you want to calculate another shape? Press Enter to continue or type something to exit: ")

print("The program has ended")

if burger == 100:
    print("You are a burger and this is a 1 in 100 chance")
print(f"{burger}")