Question

write a program to assign radius of a Circle and
find its area of a circle?​

Answer 1

Area of a circle program in C

1. int main() { float radius, area;

2. printf("Enter the radius of a circle\n");

3. scanf("%f", &radius);

4. area = 3.14159*radius*radius;

5. printf("Area of the circle = %.2f\n", area); // printing upto two decimal places.

6. return 0; }

Answer 2

Java program.

Import java.util.*;
Class cls
{
Public static void main();
{
Scanner sc = new Scanner(System.in);
System.out.println(“Enter the Radius of the circle”);
Double a = sc.nextDouble();
Double b = (22/7)*a*a;
System.out.println(“area :” +b);
}
}