Cylinder volume calculate program

Code of program:

import math

print("calculate cylinder volume")

r=input("r=")

r=float(r)

h=input("h=")

h=float(h)

volume=math.pi*(r**2)*h

print("volume=")

print(volume)

Ring area calculate program

Code of program:

import math

print("calculate ring area")

R=input("R=")

R=float(R)

r=input("r=")

r=float(r)

area=math.pi*((R**2)-(r**2))

print("area=")

print(area)

Ellipse area calculate program

Code of program:

import math

print("calculate ellipse area")

a=input("first radius a=")

a=float(a)

b=input("second radius b=")

b=float(b)

area=a*b*math.pi

print("area=")

print(area)

Circle area calculate program

Code of program:

import math

print("Calculate circle area")

d=input("diameter of a circle d=")

d=float(d)

area=math.pi*d*d/4

print("area=")

print(area)

Trapezoid area calculate program

Code of program:

print("Calculate trapezoid area")

a=input("side a=")

a=float(a)

b=input("side b=")

b=float(b)

h=input("height of trapezoid h=")

h=float(h)

area=(a+b)*h/2

print("trapezoid area=")

print(area)

Triangle area calculate program by one side and perpendicular height for this side

Code of program:

print("Calculate an area of a triangle by side and perpendicular height")

a=input("side a=")

a=float(a)

h=input("height h=")

h=float(h)

area=(a*h)/2

print("area=")

print(area)

Parallelogram area calculate program

Code of program:

print("Calculate an area of a parallelogram")

a=input("a=")

a=float(a)

b=input("b=")

b=float(b)

area=a*b

print("area=")

print(area)