D r cos 1 sin y 1 sin y 2 cos y 1 cos y 2 cos D x ϕ 90 a t a n 2 sin D x cos y 1 tan y 2 sin y 1 cos D x D x x 2 x 1 a t a n 2 x y a t a n y x d r cos 1 sin y 1 sin y 2 cos y 1 cos y 2 cos D x ϕ 90 a t a n 2 sin D x cos y 1 tan y 2 sin y 1 cos D x D x x 2 x 1 a t a n 2 x y a t a n y x. In the menu bar click Tools Ruler. Simply click on two points to measure the distance.
Add multiple points to measure a route.
On Google Earth you can measure the area of the county or distance between two regions Just mark the starting point and endpoints with two mouse clicks. Add a second point to measure between. You can use the measure distance tool and the line draw tool to check line of sight between 2 points on Google Earth. On Google Earth you can measure the area of the county or distance between two regions Just mark the starting point and endpoints with two mouse clicks.