Question

Write a program to calculate and print the area and the circumference of a circle using area = πr2 and the circumference =2πr where π = 3.14

Answer 1

Answer:

class circle {

   public static void main(double r) {

       double area = 3.14 * r * r;

       double circumference = 2 * 3.14 * r;

       System.out.println("Area: " + area + "\nCircumference: " + circumference);

   }

}

Answer 2

Below are the output and the python program for the above question :

Output :

If the user input as 3, then the output is "28.259999999999998" for area and 18.84 for circumference.

If the user input as 4, then the output is "50.24 " for area and 25.12 for circumference.

Explanation:

r=int(input("Enter the radius to find the area and circumference of a circle: "))#Take the input from the user.

print("The area of a circle is: ",3.14*r*r)#Print the area of a circle.

print("the circumference of a circle is: ",2*3.14*r)#Print the circumference of a circle.

Code Explanation :

• The above code is in python language, in which there is an input statement that instructs the user for input and takes the input from the user.
• Then the area and circumference is printed by the help of formula and print function.

Learn more :

• Python : https://brainly.in/question/14689905