What is a vertex on a 3D shape?
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What is a vertex on a 3D shape?
A vertex is a corner of a 3D shape.
E.g. a square-based pyramid has 5 vertices.
What is a face on a 3D shape?
A face is an individual flat surface of a 3D shape.
E.g. a cylinder has 2 circular faces (the two 'ends'), along with one curved surface.
What is a prism?
A prism is a 3D shape with the same cross-section throughout.
E.g. a cuboid is a rectangular prism.
True or False?
A cuboid has six equal, square faces.
False.
A cuboid has six rectangular faces.
They consist of three pairs of equal rectangular faces.
A cube has six equal, square faces.
What does a net of a 3D shape represent?
A net of a 3D shape is a 2D pattern that could be folded to make that 3D shape.
How many edges are there on a square-based pyramid?
There are eight edges on a square-based pyramid.
True or False?
The base of a tetrahedron is a square.
False.
The base of a tetrahedron is a triangle.
What shape is the cross-section of a cylinder?
The cross-section of a cylinder is a circle.
True or False?
A triangular prism has two equal triangular faces and three rectangular faces.
True.
A triangular prism has two equal triangular faces and three rectangular faces.
True or False?
A cube is a type of prism.
True.
A cube is a type of prism with a square cross-section.