1.Write a menu driven program to print area of rectangle, circle, square and triangle.
# define a function for calculating
# the area of a shapes
def calculate_area(name):\
# converting all characters
# into lower cases
name = name.lower()
# check for the conditions
if name == "rectangle":
l = int(input("Enter rectangle's length: "))
b = int(input("Enter rectangle's breadth: "))
# calculate area of rectangle
rect_area = l * b
print(f"The area of rectangle is
{rect_area}.")
elif name == "square":
s = int(input("Enter square's side length: "))
# calculate area of square
sqt_area = s * s
print(f"The area of square is
{sqt_area}.")
elif name == "triangle":
h = int(input("Enter triangle's height length: "))
b = int(input("Enter triangle's breadth length: "))
# calculate area of triangle
tri_area = 0.5 * b * h
print(f"The area of triangle is
{tri_area}.")
elif name == "circle":
r = int(input("Enter circle's radius length: "))
pi = 3.14
# calculate area of circle
circ_area = pi * r * r
print(f"The area of circle is
{circ_area}.")
elif name == 'parallelogram':
b = int(input("Enter parallelogram's base length: "))
h = int(input("Enter parallelogram's height length: "))
# calculate area of parallelogram
para_area = b * h
print(f"The area of parallelogram is
{para_area}.")
else:
print("Sorry! This shape is not available")
# driver code
if __name__ == "__main__" :
print("Calculate Shape Area")
shape_name = input("Enter the name of shape whose area you
want to find: ")
# function calling
Calculate_area(shape_name)
2. WAP to print sum, difference, product, and division of two numbers entered by the user.
n1 = float(input("Enter First Number: "))
# taking input from user
n2 = float(input("Enter Second Number: "))
# taking input from user
print("Sum =", n1+n2)
# calculating and printing Sum
print("Difference =", n1-n2)
# calculating and printing Difference
print("Product =", n1*n2)
# calculating and printing Product
print("Quotient =", n1/n2)
# calculating and printing Quotient
3. Hypotenuse of a triangle.
from math import sqrt
print("Input lengths of shorter triangle sides:")
a = float(input("a: "))
b = float(input("b: "))
c = sqrt(a**2 + b**2)
print("The length of the hypotenuse is:", c)
4. Square pattern.
side = int(input("Please Enter any Side of a Square : "))
print("Square Star Pattern")
for i in range(side):
for i in range(side):
print('*', end = ' ')
print()
5. Find roots of a quadratic equation using math module.
import cmath
a = input(“enter value of a: ”)
b = input(“enter value of b: ”)
c = input(“enter value of c: ”)
d = (b**2) - (4*a*c)
sol1 = (-b-cmath.sqrt(d))/(2*a)
sol2 = (-b+cmath.sqrt(d))/(2*a)
print('The solution are {0} and {1}'.format(sol1,sol2))
6. Area of a triangle.
a = float(input('Enter first side: '))
b = float(input('Enter second side: '))
c = float(input('Enter third side: '))
s = (a + b + c) / 2
area = (s*(s-a)*(s-b)*(s-c)) ** 0.5
print('The area of the triangle is %0.2f' %area)
7. WAP to print the below pattern
8. Check a number if it is even or odd.
num = int(input("Enter a number: "))
if (num % 2) == 0:
print("{0} is Even".format(num))
else:
print("{0} is Odd".format(num))
9. WAP to print maximum no. among three numbers.
num1 = float(input("Enter first number: "))
num2 = float(input("Enter second number: "))
num3 = float(input("Enter third number: "))
if (num1 >= num2) and (num1 >= num3):
largest = num1
elif (num2 >= num1) and (num2 >= num3):
largest = num2
else:
largest = num3
print("The largest number is", largest)
10. WAP to print sum of n numbers.
num = int(input("Enter a number: "))
if num < 0:
print("Enter a positive number")
else:
sum = 0
# use while loop to iterate un till zero
while(num > 0):
sum += num
num -= 1
print("The sum is",sum)
11. Factorial of a number.
num = int(input("Enter a number: "))
factorial = 1
# check if the number is negative, positive or zero
if num < 0:
print("Sorry, factorial does not exist for negative numbers")
elif num == 0:
print("The factorial of 0 is 1")
else:
for i in range(1,num + 1):
factorial = factorial*i
print("The factorial of",num,"is",factorial)
12. Fibonacci series
nterms = int(input("How many terms? "))
n1, n2 = 0, 1
count = 0
if nterms <= 0:
print("Please enter a positive integer")
elif nterms == 1:
print("Fibonacci sequence upto ",nterms,":")
print(n1)
else:
print("Fibonacci sequence:")
while count < nterms:
print(n1)
nth = n1 + n2
n1 = n2
n2 = nth
count += 1
13. WAP that takes input from the user until he enters zero and then count even and odd
numbers.
num_str = input("Input an integer (0 terminates):")
num_int=int(num_str)
even_count=0
odd_count=0
even_sum=0
odd_sum=0
while num_int !=0:
num_str = input("Input an integer (0 terminates):")
num_int=int(num_str)
for num_int in num_str:
if num_int%2 == 0:
even_count += 1
else:
odd_count +=1
print("")
print("Sum of odds:", odd_sum)
print("Sum of evens:", even_sum)
print("Even count:", even_count)
print("Odd count:", odd_count)
print("Total positive int count:")
14. WAP that checks if a no. is prime or composite. num = int(input("Enter a number: "))
# define a flag variable
flag = False
if num == 1:
print(num, "is not a prime number")
elif num > 1:
# check for factors
for i in range(2, num):
if (num % i) == 0:
# if factor is found, set flag to True
flag = True
# break out of loop
break
# check if flag is True
if flag:
print(num, "is not a prime number")
else:
print(num, "is a prime number")
15. LCM
a=int(input("Enter the first number:"))
b=int(input("Enter the second number:"))
maximum = max(a, b)
while(1):
if(maximum %a==0 and maximum %b==0):
print("LCM is:",maximum)
break
maximum=maximum+1
16. HCF
def calculate_hcf(x, y):
# selecting the smaller number
if x > y:
smaller = y
else:
smaller = x
for i in range(1,smaller + 1):
if((x % i == 0) and (y % i == 0)):
hcf = i
return hcf
# taking input from users
num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))
# printing the result for the users
print("The H.C.F. of", num1,"and", num2,"is", calculate_hcf(num 1, num2))
17. Co prime
num1= int(input("Please enter the first number: "))
num2= int(input("Please enter the second number: "))
mn = min(num1, num2)
for i in range(1, mn+1):
if num1%i==0 and num2%i==0:
hcf = i
if hcf == 1:
print("Yes! They are Co-Prime.")
else:
print("Sorry! They are not Co-Prime.")
18. Print Armstrong numbers till a number entered by the user.
19. Check a number if it is a palindrome no. or not.
