Question

Write a Pascal program that will prompt the user to enter the radius of a circle.
The program should calculate the area and the circumference of the circle and display the result

Answer 1

A Pascal program that will prompt the user to enter the radius of a circle is as here as follows.

How is the circumference of a circle programmed?

The circumference of a circle can easily be calculated with the following formula. Circumference = 2*pi*r where r is the radius of the circle and the value of pi = 3.1415.

1. int main() { int rad;
2. swimmers PI=3.14, area, ci; printf("\nEnter radius of circle: ");
3. scanf("%d", andrad); area = PI * rad * rad;
4. printf("\nArea of circle : %f ", area); ci = 2 * PI * rad;
5. printf("\nCircumference : %f ", ci); return (0):

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