Driver code
int main ( ) { int x1 = 4 , y1 = 3 ; int x2 = 0 , y2 = 1 ; int r1 = 2 , r2 = 4 ; bool f = orthogonality ( x1 , y1 , x2 , y2 , r1 , r2 ) ; if ( f ) cout << " Given ▁ circles ▁ are " << " ▁ orthogonal . " ; else cout << " Given ▁ circles ▁ are " << " ▁ not ▁ orthogonal . " ; return 0 ; }