Angle between 3 given vertices in a n | Function that checks whether given angle can be created using any 3 sides ; Initialize x and y ; Calculate the number of vertices between i and j , j and k ; Calculate the angle subtended at the circumference ; Angle subtended at j can be found using the fact that the sum of angles of a triangle is equal to 180 degrees ; Driver code
def calculate_angle ( n , i , j , k ) : NEW_LINE INDENT x , y = 0 , 0 NEW_LINE if ( i < j ) : NEW_LINE INDENT x = j - i NEW_LINE DEDENT else : NEW_LINE INDENT x = j + n - i NEW_LINE DEDENT if ( j < k ) : NEW_LINE INDENT y = k - j NEW_LINE DEDENT else : NEW_LINE INDENT y = k + n - j NEW_LINE DEDENT ang1 = ( 180 * x ) // n NEW_LINE ang2 = ( 180 * y ) // n NEW_LINE ans = 180 - ang1 - ang2 NEW_LINE return ans NEW_LINE DEDENT n = 5 NEW_LINE a1 = 1 NEW_LINE a2 = 2 NEW_LINE a3 = 5 NEW_LINE print ( calculate_angle ( n , a1 , a2 , a3 ) ) NEW_LINE