text: Area of a Circumscribed Circle of a Square | C ++ Program to find the area of a circumscribed circle ; Utiity function ; Driver code
code: #include <stdio.h> NEW_LINE #define PI  3.14159265 NEW_LINE float areacircumscribed ( float a ) { return ( a * a * ( PI / 2 ) ) ; } int main ( ) { float a = 6 ; printf ( " ▁ Area ▁ of ▁ an ▁ circumscribed ▁ circle ▁ is ▁ : ▁ % .2f ▁ " , areacircumscribed ( a ) ) ; return 0 ; }