A communications satellite is directly above the extension of a line between receiving towers A and B. It is determined from radio signals that the angle of elevation of the satellite from tower A is 89.2°, and the angle of elevation from tower B is 86.5°. See Fig. 9.66. If A and B are 1290 km apart, how far is the satellite from A? (Neglect the curvature of Earth.)

Transcribed Image Text:

Fig. 9.66 B Satellite 86.5° 89.2° 1290 km A