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Year 9 Introducing the Trigonometric Ratios
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Which answer correctly names the sides and angle of the triangle at below?
1 point
∠C = θ, AB = adjacent side, AC = hypotenuse, AC = opposite side
∠C = θ, AB = opposite side, AC = hypotenuse, AC = adjacent side
∠A = θ, AB = opposite side, AC = hypotenuse, BC = adjacent side
∠C = θ, AB = opposite side, AC = hypotenuse, BC = adjacent side
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What is the correct trigonometric ratio for the triangle shown at below?
1 point
A
B
C
D
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Which trigonometric ratio for the triangle shown is incorrect?
1 point
A
B
C
D
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Choose the correct statement regarding trigonometric ratios.
1 point
sin 55° = cos 55°
sin 45° = cos 35°
cos 15° = sin 85°
sin 42° = cos 48°
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For the triangle shown
1 point
A
B
C
D
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The value of cos 46°, correct to four decimal places, is:
1 point
0.7193
0.6947
0.5940
0.6532
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The side opposite angle B in this triangle is:
1 point
MB
TB
BT
the hypotenuse
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The expression for sin θ in this triangle is:
1 point
A
B
C
D
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The expression for tan θ in this triangle is:
1 point
A
B
C
D
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The value of cos 28° is closest to:
1 point
29
0.8829
0.1392
0.1736
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