Angles of Elevation, Depression, and Bearings (HSC SSCE Mathematics Advanced): Flashcards
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Practise the cards
10 cards from this deck
Angle of elevation
Angle of elevation
Angle upward from horizontal to object above eye level
Angle of depression
Angle of depression
Angle downward from horizontal to object below eye level
Elevation angle A→B vs depression angle B→A
Elevation angle A→B vs depression angle B→A
Equal (alternate angles on parallel horizontals)
Three distances in elevation/depression problems
Three distances in elevation/depression problems
Horizontal, vertical, direct (hypotenuse)
Compass bearing components
Compass bearing components
Start (N/S), acute angle ≤90°, rotation (E/W)
Compass bearing starting directions
Compass bearing starting directions
North or South only (never East or West)
True bearing
True bearing
Angle clockwise from north, always three digits
True bearing digit format rule
True bearing digit format rule
Always three digits (e.g., 035°T not 35°T)
Finding return bearing
Finding return bearing
Add or subtract 180° from original bearing
Convert westward compass bearing to true bearing
Convert westward compass bearing to true bearing
Subtract angle from 360° (e.g., N42°W: 360° - 42° = 318°T)