Distance Between Two Points. Actually the word distance normally denotes positive distance. We know the distance between a point xy and 10 is determined by the Euclidean norm ie.
If we want to calculate the distance between two places in kilometers use the value 6 3788 which is the radius of Earth.
12 Distance Between Two Points. Note that the formula works whether P is inside or outside the circle. Then calculate the distance from the xy point to 00 and if its more than one then its outside the circle so discard it and start over. D x 1 x 2 2 y 1 y 2 2 Half this length D 2 along with the radius form one side and the hypotenuse of a right-angle triangle.