3D shapes- Part 3 Flashcards
1
Q
Euler’s Theorem says that:
A
Faces + vertices - edges = 2
2
Q
If a square based pyramid has 5 faces and 5 vertices, how many edges does it have? Why?
A
8 Because 5 + 5 = 10 10 - 2 = 8 = 8 edges
3
Q
If a hexagonal prism has 8 faces and 12 vertices, how many edges does it have?
A
18 Because 8 + 12 = 20 20 - 2 = 18
4
Q
Where is the plan, side elevation and front section?
A
5
Q
What is a net?
A
A net is a pattern that you can cut and fold to make a model of a 3D shape
6
Q
What is a cuboid?
A
Rectangular prism
7
Q
What is a prism?
A
3D shape with same cross-section throughout its length
