Page 72 - NUMINO Challenge_C1
P. 72
Basic Concepts The Net of a Rectangular Prism
A rectangular prism always has three sets of
four edges of the same length, and the faces
that are opposite each other are of equal shape
and size.
A diagram that shows what a rectangular prism
looks like when it is unfolded is called a
rectangular prism net. When the net is folded,
the lengths of the edges that meet are equal.
The shapes and sizes of opposite faces must also be equal.
Example Draw the net of the rectangular prism below so that it fits exactly
in the grid on the right.
4
2
3
Class Notes faces that look like this:
The rectangular prism above is made up of
Since each of the pairs of faces with the same shape and size
are opposite each other, there are two ways to draw them on the
vertical spaces of the grid such that they are not next to one
another.
Complete the net by adding the remaining three faces.
69Geometry
A rectangular prism always has three sets of
four edges of the same length, and the faces
that are opposite each other are of equal shape
and size.
A diagram that shows what a rectangular prism
looks like when it is unfolded is called a
rectangular prism net. When the net is folded,
the lengths of the edges that meet are equal.
The shapes and sizes of opposite faces must also be equal.
Example Draw the net of the rectangular prism below so that it fits exactly
in the grid on the right.
4
2
3
Class Notes faces that look like this:
The rectangular prism above is made up of
Since each of the pairs of faces with the same shape and size
are opposite each other, there are two ways to draw them on the
vertical spaces of the grid such that they are not next to one
another.
Complete the net by adding the remaining three faces.
69Geometry
