Subjects · Leaving Cert Design & Communication Graphics (DCG)
Leaving Cert Design & Communication Graphics (DCG): Cube & tetrahedron
How often Cube & tetrahedron comes up on the Design & Communication Graphics papers, every year it was asked, and questions to try.
HL Asked on 2 of the last 9 Higher Level papers, most recently in 2021.
Cube & tetrahedron, Higher Level(8 marks)
Quick ones on Cube & tetrahedron.
(a)The centre of a regular tetrahedron is how far up its vertical height, measured from the base?
- One third of the height
- One quarter of the height
- Half the height
(b)A cube has 40 mm edges. What is the length of its space diagonal?
- 80.0 mm
- ≈56.6 mm
- ≈69.3 mm
(c)A cube stands on one corner with a space diagonal vertical. What shape is its plan outline?
- A regular hexagon
- An equilateral triangle
- A square
Show the answers
(a) One quarter of the height
(b) ≈69.3 mm
(c) A regular hexagon
Higher Level
Asked on 2 of the last 9 Higher Level papers, most recently in 2021.
Every paper, year by year
| Year | Where it came up |
|---|---|
| 2025 | Not asked |
| 2024 | Not asked |
| 2023 | Not asked |
| 2022 | Not asked |
| 2021 | A3 |
| 2019 | Not asked |
| 2018 | Not asked |
| 2017 | Not asked |
| 2016 | A4 |
Links open the State Examinations Commission’s paper for that year.
Other Design & Communication Graphics (DCG) topics
- Axonometric projection
- Interpenetration of solids
- Intersecting planes & dihedrals
- Orthographic & auxiliary views
- Perspective drawing
- Oblique planes & traces
- Parabola
- Solids in contact
- True length & angles of lines
- Surface development & envelopment
- Tangency: circles & arcs
- Ellipse
- Hyperbola
- Sections of solids
- Skew lines
- Plane figures & constructions