Next: Write a Python program which accepts the user's first and last name and print them in reverse order with a space between them. Previous: Write a Python program to display the current date and time. Have another way to solve this solution? Contribute your code (and comments) through Disqus. This code is useful to calculate the area of a circle when the radius is known, it can be used in physics and mathematical calculations or in applications that require the area of a circle to be calculated. Then it concatenates the string and the value of the radius and area using the + operator and prints the final string. The third line print ("The area of the circle with radius " + str(r) + " is: " + str(pi * r**2)) uses the formula to calculate the area of the circle (pi*r**2).input() function assigns it to the variable r, it's then cast to float, so the user can input decimal number also. The second line r = float(input ("Input the radius of the circle : ")) gets the radius of the circle from the user using the input() function.It represents the ratio of a circle's circumference to its diameter (approximately equal to 3.14). The first line from math import pi imports the pi constant from the math module, which is the mathematical constant. How Many Pizzas To Buy Calculator And, how many Domino pizzas should you order The largest pizza at Dominos is 16 wide, costs 12.99, has 12 slices, and serves 5-8 people.The code uses the "math" module's pi constant and the "input" function to get the radius from the user, then it uses the formula to calculate the area of the circle. The said code calculates the area of a circle based on the radius entered by the user. Sample Output: Input the radius of the circle : 1.1 Print ("The area of the circle with radius " + str(r) + " is: " + str(pi * r**2)) R = float(input ("Input the radius of the circle : ")) In a complete circular pizza, we know that the central angles of all the slices will add up to 2 radians 360°. Here the Greek letter π represents a constant, approximately equal to 3.14159, which is equal to the ratio of the circumference of any circle to its diameter. In geometry, the area enclosed by a circle of radius r is πr2. Write a Python program that calculates the area of a circle based on the radius entered by the user. Well, with the help of an already established pizza calculator you can get your math ready.
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