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Ships at Sea Trigonometry

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Angles of depression CLIFFCLIFF 120m horizontal 38° 53° Ship1 Ship2 Sea The diagram shows a cliff 120 metres high. From the top of the cliff, the angles of depression of two ships at sea are 38° and 53° respectively. Use trigonometry to find the distance between the two ships.

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Height of the cliff (metres) Angles of depression of the two ships 12722° and 34° 17626° and 32° 21618° and 28° 15027° and 38° 13320° and 30° Repeat the previous calculations to find the distance between the ships in the examples below.

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Angle of elevation and depression. Warm Up 1. Identify the pairs of alternate interior angles. 2. Use your calculator to find tan 30° to the nearest hundredth.

Angle of elevation and depression. Warm Up 1. Identify the pairs of alternate interior angles. 2. Use your calculator to find tan 30° to the nearest hundredth.

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