Solve problems mixing angles and sides

Solve problems mixing angles and sides

Lesson details

Key learning points

  1. In this lesson, we will apply trigonometry to multi-step problems by finding missing sides and missing angles

Licence

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3 Questions

Q1.
Which of the trigonometry ratios will be required to find the missing angle in this question?
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inverse cosine
Correct answer: inverse sine
inverse tangent
Q2.
Find the missing angle, giving your answer to 1 decimal place.
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Correct answer: 17.9 degrees
60 degrees
72.1 degrees
Q3.
Find the missing angle, giving your answer to 1 decimal place.
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27.6 degrees
Correct answer: 41.6 degrees
48.4 degrees

3 Questions

Q1.
To find x, which other side will you need to find first
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a
Correct answer: b
c
Q2.
2.Work out the length of the side marked x to 2 d.p.
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Correct answer: 16.28 cm
6.88 cm
8.51 cm
Others
Q3.
A ladder that is 5 metres long is placed against a wall. The angle of elevation is 50°. How high up the wall does the ladder reach? Give your answer to 2 d.p.
3.21 m
Correct answer: 3.83 m
5.96 m
Others

Lesson appears in

UnitMaths / Trigonometry 2