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).

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

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.

? 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

? 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

? 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

? 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

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

? 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

? 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

? 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

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

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

? 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

? 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

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

? 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

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

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

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