TechOnespot

5. Write a C program to enter radius of a circle and find its diameter, circumference and area. Solution :- #include<conio.h> #include<stdio.h> void main() {     clrscr();     float radius,area,circumference,diameter,pi=3.14;     printf("Enter the radius :-");     scanf("%f",&radius);     area =pi*radius*radius;     diameter = 2*radius;     circumference =2*pi*radius;     printf("The area of a circle :-%f\n",area);     printf("The diameter of a Circle :-%f\n",diameter);     printf("The Circumference of a Circle :- %f\n",circumference); getch(); }   Output :-