Development of Oblique Solids (Leaving Cert DCG): Flashcards
📚Flashcards
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Practise the cards
10 cards from this deck
Oblique solid
Oblique solid
3D shape where edges/sides not perpendicular to base
Development (net) of a solid
Development (net) of a solid
Flat pattern when solid is unfolded onto a plane
True length
True length
Actual measurement of edge in 3D space, not foreshortened
Three main views for oblique solids
Three main views for oblique solids
Plan view, elevation view, and development
Foreshortening
Foreshortening
Edges appear shortened in views due to perspective
Generators in cylinders/cones
Generators in cylinders/cones
Straight lines running along curved surface of solid
Construction method for cone development
Construction method for cone development
Radial construction from apex point
Oblique pyramid edge lengths
Oblique pyramid edge lengths
Each base-to-apex edge has different true length
Construction sequence for oblique solids
Construction sequence for oblique solids
Plan→elevation→find true lengths→construct development
Why not measure directly from plan/elevation views
Why not measure directly from plan/elevation views
Foreshortening makes development inaccurate and unfoldable