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Transcript
## Angle of Elevation & Depression - E-eye of observer - O-object sighted **Example:** | ΔABE | ΔBCE | ΔCDE | |-------------------------|-------------------------|-----------------------| | tan 40° = BE / 4 | cos 20° = 3.36 / EC | sin 60° =...
## Angle of Elevation & Depression - E-eye of observer - O-object sighted **Example:** | ΔABE | ΔBCE | ΔCDE | |-------------------------|-------------------------|-----------------------| | tan 40° = BE / 4 | cos 20° = 3.36 / EC | sin 60° = x/3.58 | | BE = 4 tan 40° | EC = 3.36 / cos 20° | x = 3.58 sin 60° | | BE = 3.36 | EC = 3.58 | x = 3.1 |
