How Do We Can Calculate The Distance Of Moon From Earth?

Here is one way:

1. On the day of the month when the moon is directly behind the earth ( the sun, earth and moon are in a straight line) make a measurement of the angle between a vertical line and the center of the moons image exactly at either sundown or sunset.

2. This angle will form one angle of a right triangle. The radius of the Earth (about 3,963 miles) will form one side of the triangle.

With this information known use simple trig to calculate the other leg of the triangle (not the hypotenuse) which will be the distance from the center of the earth to the surface of the moon.

The distance can be solved using our knowledge of physics. There are many given conditions in many problems on how to approach solving this problem, but in a basic approach.. we can solve it if we know the size of the moon( the diameter) base from your own vision, and the angle in which we see the tip to toe of its diameter. We can solve it now by basic trigonometry.