1. How much cardboard in a cardboard box?
Surface Area of Rectangular Prisms
How much cardboard in a cardboard box?

2. NETS of a CUBE

3. FINDING SURFACE AREA USING NETS
MSG PAGE 276

4. Do you see all of the faces?
4 cm 7 cm 10
Do you see all of the faces?
How many faces are
there?
Six

5. What is the name of this shape?
4 cm 7 cm 10
What is the name of this shape?
Rectangular prism

6. 4 cm 7 cm 10
Can you draw the net?
10 cm
4cm
7cm

7. LETS MAKE A TABLE Side Area Number of sides Total Area RED BLUE GREEN

8. What are the dimensions of this rectangle?
4 cm 7 cm 10
Do you see the RED face?
What are the dimensions of this rectangle?
4 cm
10 cm

9. Do you see another face that is just like the RED face?
4 cm 7 cm 10
Do you see another face that is just like the RED face?
Where is it located?
Keep an eye on the next screen!

10. Yes, it’s on the back.
10cm
4 cm

11. 40cm2
Now there are 2 rectangles
that each have an area of 40 sq. cm

12. We should use a table to tabulate the various areas.
40cm2
Side
Area
Number of Sides
Total Area
RED 2 B C
TOTAL
40cm2

13. What are the dimensions of this rectangle?
4 cm 7 cm 10
Do you see the BLUE face?
What are the dimensions of this rectangle?
4 cm
7 cm

14. Do you see another face that is just like the BLUE face?
4 cm 7 cm 10
Do you see another face that is just like the BLUE face?
Where is it located?

15. Yes, it’s on the left side.
7 cm
4 cm
4 cm
7 cm

16. 28cm2
Now there are 2 rectangles
that each have an area of 28 sq. cm.

17. We should use a table to tabulate the various areas.
28cm2
Side
Area
Number of Sides
Total Area
RED 2
BLUE C
TOTAL
28cm2

18. Do you see the GREEN face?
4cm 7 cm
10cm
Do you see the GREEN face?
What are the dimensions of this rectangle?
7 cm
10 cm

19. Do you see another face that is just like the GREEN face?
4 cm 7 cm 10
Do you see another face that is just like the GREEN face?
Where is it located?

20. Yes, it’s on the bottom.
10cm
7 cm
10cm
7 cm

21. 70cm2
Now there are 2 rectangles
that each have an area of 70 sq. cm.

22. We should use a table to tabulate the various areas.
Side
Area
Number of Sides
Total Area
RED 2
BLUE
GREEN
TOTAL
70cm2
70cm2

23. Now we just need to add all the areas of the sides together.+
70cm2
28cm2
40cm2

24. The total Surface Area for this rectangular prism is=
276cm2

25. We should use a table to tabulate the various areas.
Side
Area
Number of Sides
Total Area
RED 2
BLUE
GREEN
TOTAL 6

26. MSG : SHOW WORK 277
PROBLEM 291

27. Side Area Number of sides Total Area Top/bottom left /right Front/back2 2 2 6