A satellite is in orbit 800km above the surface of the earth.

The satellite is viewed and imaged at an angle of 40 degrees above the earths surface.

calculate the distance between you and the satellite.

So far I have:

triangle

point A (you)

point B (centre of the Earth)

point C (satellite)

length A-B is the diameter of Earth approx 6370km

length C-B is diameter of Earth + 800km (altitude of satellite)

angle B-A-C is 90+40 degrees

however this triangle doesn't allow me to find the distance between A-C

any suggestions would be great.

Regards,

David