1. Trigonometry – Bearings – 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. Trigonometry with Bearings
BINGO! 45 54 23 82 37 12 76 25 91
Trigonometry with Bearings

4. Choose your numbers… 44 20 84
139
138 38 39 50
106 51 5 40 43
176 54 78
Draw a 3x3 grid in your book.

5. ? SOH CAH TOA 50° 60 Km A helicopter flies 60 km on a bearing of 050°
How far north did it travel? N ?
50°
60 Km
𝐶𝑜𝑠 50= 𝐴 60
𝐴=60 ×𝐶𝑜𝑠 50
SOH
CAH
TOA
=39 km

6. ? SOH CAH TOA 40° 80 Km A ship travels 80 km on a bearing of 040°
How far east did it travel? ? N
40°
80 Km
𝑆𝑖𝑛 40= 𝑂 80
𝐴=80 ×𝑆𝑖𝑛 40
SOH
CAH
TOA
=51 km

7. ? SOH CAH TOA 120° 30° 50 Km A ship sails 50 km on a bearing of 120°
How far east did it travel? N
120° ?
30°
50 Km
𝐶𝑜𝑠 30= 𝐴 50
𝐴=50 × 𝐶𝑜𝑠 30
SOH
CAH
TOA
=43 km

8. ? SOH CAH TOA 70° 130 Km A jet flies 130 km on a bearing of 070°
How far north did it travel? N ?
70°
130 Km
𝐶𝑜𝑠 70= 𝐴 130
𝐴=130 ×𝑆𝑖𝑛 70
SOH
CAH
TOA
=44 km

9. A helicopter flies 110 km on a bearing of 220°
How far south did it travel? N
220°
110 Km
40° ?
𝐶𝑜𝑠 40= 𝐴 110
𝐴=110 ×𝐶𝑜𝑠 40
SOH
CAH
TOA
=84 km

10. ? SOH CAH TOA 30° 80 Km 330° A ship travels 80 km on a bearing of 330°
How far west did it travel? ? N
30°
80 Km
330°
𝑆𝑖𝑛 30= 𝑂 80
𝐴=80 ×𝑆𝑖𝑛 30
SOH
CAH
TOA
=40 km

11. ? SOH CAH TOA 140° 50° 70 Km A plane flies 70 km on a bearing of 140°
How far south did it travel? N
140°
50° ?
𝑆𝑖𝑛 50= 𝑂 70
70 Km
𝐴=70 ×𝑆𝑖𝑛 50
SOH
CAH
TOA
=54 km

12. ? SOH CAH TOA 85° 140 Km A jet flies 140 km on a bearing of 085°
How far east did it travel? N ?
85°
140 Km
𝑆𝑖𝑛 85= 𝑂 140
𝐴=140 ×𝑆𝑖𝑛 85
SOH
CAH
TOA
=139 km

13. A helicopter flies 20 km on a bearing of 100°
How far east did it travel? N
100° ?
10°
20 Km
𝐶𝑜𝑠 10= 𝐴 20
𝐴=20 × 𝐶𝑜𝑠 10
SOH
CAH
TOA
=20 km

14. A pirate ship sails 30 km on a bearing of 260°
How far south did it travel? N
260°
30 Km ?
80°
𝐶𝑜𝑠 80= 𝐴 30
𝐴=30 ×𝐶𝑜𝑠 80
SOH
CAH
TOA
=5 km

15. ? SOH CAH TOA 150° 60° 90 Km A plane flies 70 km on a bearing of 150°
How far south did it travel? N
150°
60° ?
𝑆𝑖𝑛 60= 𝑂 90
90 Km
𝐴=90 ×𝑆𝑖𝑛 60
SOH
CAH
TOA
=78 km

16. ? SOH CAH TOA 230° 65 Km 50° A jet flies 65 km on a bearing of 230°
How far west did it travel? N
230°
65 Km
50°
𝑆𝑖𝑛 50= 𝑂 65 ?
𝑂=65 ×𝑆𝑖𝑛 50
SOH
CAH
TOA
=50 km

17. A ship travels 230 km on a bearing of 310°
How far west did it travel? ? N
50°
230 Km
310°
𝑆𝑖𝑛 50= 𝑂 230
𝐴=230 ×𝑆𝑖𝑛 50
SOH
CAH
TOA
=176 km

18. ? SOH CAH TOA 190° 220 Km 10° A ship sails 220 km on a bearing of 190°
How far west did it travel? N
190°
220 Km
10°
𝑆𝑖𝑛 10= 𝑂 220
𝑂=220 ×𝑆𝑖𝑛 10 ?
SOH
CAH
TOA
=38 km

19. A plane flies 180 km on a bearing of 320°
How far north did it travel? N ?
40°
180 Km
320°
𝐶𝑜𝑠 40= 𝐴 180
𝐴=180 ×𝐶𝑜𝑠 40
SOH
CAH
TOA
=138 km

20. A pirate ship sails 130 km on a bearing of 325°
How far north did it travel? N ?
35°
130 Km
325°
𝐶𝑜𝑠 35= 𝐴 130
𝐴=130 ×𝐶𝑜𝑠 35
SOH
CAH
TOA
=106 km

22. tom@goteachmaths.co.uk Questions? Comments? Suggestions?
…or have you found a mistake!?
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