text: Function to find distance
code: void shortest_distance ( float x1 , float y1 , float a , float b , float c ) { float d = fabs ( ( a * x1 + b * y1 + c ) ) / ( sqrt ( a * a + b * b ) ) ; printf ( " Perpendicular ▁ distance ▁ is ▁ % f STRNEWLINE " , d ) ; return ; }