HSC Standard 2 Trigonometry 2

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HSC Standard 2 Trigonometry 2

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What is the size of the smallest angle in this triangle?

1 point

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29°

47°

58°

76°

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Which statement is true for the given triangle?

1 point

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A

B

C

D

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A ship sails a distance of 50 km on a bearing of 040°. Which expression can be used to find how far east the ship travelled?

1 point

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A

B

C

D

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The angle of depression of the base of the tree from the top of the building is 57°. The height of the building is 75 metres. What is the distance from the base of the building to the base of the tree, correct to the nearest metre?

1 point

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49 m

57 m

63 m

115 m

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Use the sine rule to find the length of the side x correct to one significant figure.

1 point

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7 cm

5 m

4 m

8 m

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1 point

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67°

113°

132°

138°

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Which trigonometric formula would be most useful in calculating the length BC?

1 point

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A

B

C

D

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What is the approximate length of the side marked x?

1 point

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10

31

39

67

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The compass bearing of Y from X is S49°W. What is the compass bearing of X from Y?

1 point

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S49°W

S41°W

N49°E

N41°E

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A sailing boat travels due east from A to B.It then turns and sails on a bearing of 210°.What is the boat’s bearing from A when the boat is closest to A?

1 point

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030°

120°

150°

210°

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