Transcript Document

of
Rectangular Prisms
Surface Area
• What does it mean to you?
• Does it have anything to do with what is in
the inside of the prism?
VOLUME (not surface area) is the
amount a shape can hold inside.
• Surface area is found by finding the area of
all the sides and then adding those answers
together.
Surface Area
of
Rectangular Prisms
• What is area?
The amount of square units that will
COVER a shape.
• How will the answer be labeled?
Units2 because it is area!
Rectangular Prism
B
5
in
A
How many faces are
on here? 6
C
6
4
A = 5 x 4 = 20 x 2 =40
B = 6 x 5 = 30 x 2 = 60
C = 4 x 6 = 24 x 2 = 48
148 in2
Find the area of each of
the faces.
Do any of the faces
have the same area?
If so, which ones?
Opposite faces are the same.
Find the SA
Cube
A
Are all the faces the same?
4m
How many faces are
there?
YES
6
Find the surface area of
one of the faces.
4 x 4 = 16
X6
96 m2
Take that times the
number of faces.
Now It’s YOUR Turn!
I think I can!
I think I can!
I think I can!
I think I can!
I think I can!
I think I can!