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1 of 8
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Lesson
Practice
Choose a trigonometric ratio
DIFFICULTY
intro
standard
challenge
exam
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Side-pair diagram 1
Side-pair diagram 2
Side-pair diagram 3
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Question 1 of 8
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Triangle FED. Right angle at D; marked acute angle theta at E. FE = 47 cm, ED = x cm. Not to scale.
47 cm
x cm
F
E
D
θ
Triangle FED. Not to scale
1 mark
Choose the ratio needed to find the missing length
Cosine
Tangent
Sine
CHECK
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