The length of the hypotenuse is the distance between the. The horizontal distance a is xA. What is the length of this red line.
Once you place two points on the detected horizontal planes you should see a line being drawn between the two points with the distance right next to the end point.
Given two points you can always plot them draw the right triangle and then find the length of the hypotenuse. What is the length of this red line. The Pythagorean theorem then says that the distance between the two points is the square root of the sum of the squares of the horizontal and vertical sides. Know the distance formula.