Describing a three-dimensional object
Electrical Technology · Grade 11 · about 40 minutes
Describe a solid by its faces, edges and vertices.
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- 8 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- What orthographic projection is
- Describing a three-dimensional object
- The planes of projection
- The four quadrants of a plane
- The principal views
- First angle projection
- Third angle projection
- Comparing first and third angle
- The projection symbol
- Line types and conventions
- Sectional views
- Extension and dimension lines
- Figures, units and symbols
- Rules for good dimensioning
- Drawing electrical components
- Applications in electrical technology
- Reading orthographic drawings
- The importance of orthographic drawings