Question

how to find area of circle in c++

Answer 1

/* C++ Program - Calculate Area and Circumference of Circle */ #include<iostream.h>#include<conio.h>void main(){ clrscr(); float r, area, circum; cout<<"Enter the radius of the circle :"; cin>>r; area=3.14*r*r; circum=2*3.14*r; cout<<"Area of the circle = "<<area<<"\nCircumference of the circle = "<<circum<<"\n"; getch();                                                                             

write this and u will get the answer