1. Prism – Surface Area – Bingo Method
Students should choose nine answers from the grid and place them
randomly into a 3x3 square in their book.
You may want to pause your display and choose questions
according to difficulty during the game.
Depending on time, students could win with
a line, an X, or a ‘full house’ (all).

2. Printing To print handouts from slides -
Select the slide from the left. Then click:
File > Print > ‘Print Current Slide’
To print multiple slides -
Click on a section title to highlight all those slides,
or press ‘Ctrl’ at the same time as selecting slides to
highlight more than one. Then click:
File > Print > ‘Print Selection’
To print double-sided handouts -
Highlight both slides before using ‘Print Selection’.
Choose ‘Print on Both Sides’ and ‘Flip on Short Edge’.

3. BINGO! 45 54 23 82 37 12 76 25 91
Surface Area
of Prisms

4. Choose your numbers… 88 58
132
102
261
126
105
136 92 82
127
158
156
162
192 74
Draw a 3x3 grid in your book.

5. What is the surface area of this prism?
8 cm
2 cm
5 cm
Front & Back =
2 × (5 × 2) = 20 cm2
Sides =
2 × (2 × 8) = 32 cm2
132 cm2
2 × (5 × 8) = 80 cm2

6. What is the surface area of this prism?
Square-based
Prism
3 cm
7 cm
Front & Back =
2 × (3 × 3) = 18 cm2
Sides =
4 × (3 × 7) = 84 cm2
102 cm2

7. What is the surface area of this prism?
3 cm
8 cm
4 cm
Front & Back =
2 × (4 × 3) = 24 cm2
Sides =
2 × (3 × 8) = 48 cm2
136 cm2
2 × (4 × 8) = 64 cm2

8. What is the surface area of this prism?
8 cm
6 cm
6 cm
5 cm
Front & Back =
2 × (15) = 30 cm2
Sides =
2 × (8 × 6) = 96 cm2
156 cm2
1 × (5 × 6) = 30 cm2

9. What is the surface area of this prism?
Square-based
Prism
9 cm
3 cm
Front & Back =
2 × (3 × 3) = 18 cm2
Sides =
4 × (3 × 9) = 108 cm2
126 cm2

10. What is the surface area of this prism?
6 cm
1 cm
5 cm
Front & Back =
2 × (5 × 1) = 10 cm2
Sides =
2 × (1 × 6) = 12 cm2
82 cm2
2 × (5 × 6) = 60 cm2

11. What is the surface area of this prism?
9 cm
8 cm
7 cm
5 cm
Front & Back =
2 × (20) = 8 cm2
Sides =
1 × (9 × 7) = 63 cm2
162 cm2
1 × (8 × 7) = 56 cm2
1 × (5 × 7) = 35 cm2

12. What is the surface area of this prism?
Square-based
Prism
2 cm
8 cm
Front & Back =
2 × (8 × 8) = 128 cm2
Sides =
4 × (8 × 2) = 64 cm2
192 cm2

13. What is the surface area of this prism?
What type of triangle?
9 cm
8 cm
7 cm
9 cm
Front & Back =
2 × (36) = 72 cm2
Sides =
3 × (9 × 7) = 189 cm2
261 cm2

14. What is the surface area of this prism?
9 cm
1 cm
7 cm
Front & Back =
2 × (7 × 1) = 14 cm2
Sides =
2 × (1 × 9) = 18 cm2
158 cm2
2 × (7 × 9) = 126 cm2

15. 127 cm2 What is the surface area of this prism?
Isosceles Triangle-based
Prism
7 cm
5 cm
6 cm
Front & Back =
2 × (12.5) = 25 cm2
Sides =
1 × (7 × 6) = 42 cm2
127 cm2
2 × (5 × 6) = 60 cm2

16. What is the surface area of this prism?
6 cm
5 cm
6 cm
3 cm
Front & Back =
2 × (7.5) = 15 cm2
Sides =
2 × (6 × 6) = 72 cm2
105 cm2
1 × (3 × 6) = 18 cm2

17. What is the surface area of this prism?
Square-based
Prism
10 cm
2 cm
Front & Back =
2 × (2 × 2) = 8 cm2
Sides =
4 × (2 × 10) = 80 cm2
88 cm2

18. What is the surface area of this prism?
5 cm
2 cm
6 cm
4 cm
Front & Back =
2 × (4) = 8 cm2
Sides =
1 × (5 × 6) = 30 cm2
74 cm2
1 × (2 × 6) = 12 cm2
1 × (4 × 6) = 24 cm2

19. What is the surface area of this prism?
3 cm
2 cm
5 cm
4 cm
Front & Back =
2 × (4) = 8 cm2
Sides =
2 × (3 × 5) = 30 cm2
58 cm2
1 × (4 × 5) = 20 cm2

20. What is the surface area of this prism?
6 cm
3 cm
6 cm
5 cm
Front & Back =
2 × (7.5) = 8 cm2
Sides =
1 × (6 × 6) = 36 cm2
92 cm2
1 × (3 × 6) = 18 cm2
1 × (5 × 6) = 30 cm2

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