Finding the Volume of
Rectangular Prisms
5.MD.C.5
Finding the Volume of Rectangular Prisms
18 cubic units
Here
We
9
8
7
6
5
4
3
2
1
18
17
16
15
14
13
12
11
The
0 will
volume
is a
use
rectangular
this
of this
unitshape
cube
prism.
is
to18
Let’s
help
cubic
measure
findunits.
the volume—or
volume. How
themany
amount
unitof
cubes
space—inside
will fill thisthis
shape?
prism.
Finding the Volume of Rectangular Prisms
4 x 4 prism
This
rectangular
= 16. So,
hasthere
4 prism
layers,
arealso
16
and
unit
has
each
cubes
congruent
layer
here.
haslayers.
4 unit cubes.
Finding the Volume of Rectangular Prisms
16 cubic units
The volume of this rectangular prism is 16 cubic units.
Finding the Volume of Rectangular Prisms
24 cubic units
Let’s
The
Here
3
…
So,
24
layers
and
the
base
are
find
4volume
of
layers
2has
the
layers
6…
volume
6 of
unit
of
6.
the
6
cubes.
Now,
of
…
prism
this
theis
rectangular
prisms
24 cubic
areunits.
prism
identical.
by building
What is an
4 xidentical
6?
one next to it.
Finding the Volume of Rectangular Prisms
45 cubic units
Let’s
6
3
9
So,
x3
2the
4
5
=
take
18
36
45
27
volume
apart of
a copy
this prism
of thisisprism
45 cubic
to find
units.
its volume.
Finding the Volume of Rectangular Prisms
5
×
2
×
6
=60
6
60 cubic units
5
2
Another
5
2
How
6
To
What
60
So,
—find
the
the
many
isthe
volume
5
length
width
height
way
x cubes
number
2 to
xof
of
6?
of
find
the
this
the
can
are
high
this
of
the
prism
prism
along
prism
we
unit
prism
isvolume
the
count
cubes,
isis
this
is
is
prism?
2.6.
5.
60
across
of
edge?
we
cubic
a rectangular
can
the
units.
multiply
front of
prism
the
thelength
prism?
is to multiply
by the width
its length
by the
byheight.
its width by its height.
Finding the Volume of Rectangular Prisms
4
×
2
×
4
=32
4
32 cubic units
4
2
This
…
We
What
So,
32
acan
and
this
width
prism
isafind
4
prism
height
xof
has
2the
2xhas
…
4aof
volume
equal
length
4.
a volume
to?
by
of 4multiplying
…
of 32 cubicthe
units.
length by the width by the height.
Finding the Volume of Rectangular Prisms
6 3 × 3 × 6 =54
54 cubic units
3
3
This
…
We
What
So,
54
acan
and
this
width
prism
isafind
3
prism
height
xof
has
3the
3xhas
…
6aof
volume
equal
length
6.
a volume
to?
by
of 3multiplying
…
of 54 cubicthe
units.
length by the width by the height.
Finding the Volume of Rectangular Prisms
Lightning Round
Finding the Volume of Rectangular Prisms
How many cubic units are there?
24 cubic units
Finding the Volume of Rectangular Prisms
How many cubic units are there?
50 cubic units
Finding the Volume of Rectangular Prisms
How many cubic units are there?
27 cubic units
Finding the Volume of Rectangular Prisms
Closing Question
Finding the Volume of Rectangular Prisms
How many cubic units are there?
20 cubic units