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- Introduction to Trigonometry
Other word problems relating angles in trigonometry
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- Lesson: 28:55
- Lesson: 35:24
Other word problems relating angles in trigonometry
Basic Concepts: Use sine ratio to calculate angles and sides (Sin = ho ), Use cosine ratio to calculate angles and sides (Cos = ha ), Use tangent ratio to calculate angles and sides (Tan = ao ), Combination of SohCahToa questions
Related Concepts: Ferris wheel trig problems, Tides and water depth trig problems, Spring (simple harmonic motion) trig problems
Lessons
- 1.A bird is sitting in a 35 metre tall tree looking down at a worm on the ground. If the angle of depression from the bird to the ground is 55∘, how far is the bird from the worm?
- 2.Standing on the balcony of an building A, the angle of elevation to the top of the building B across the street is 47∘, and the angle of depression to the bottom of the building B is 58∘. If the buildings are 42 metres apart, find the height of the building B across the street.
- 3.If the volume of the cube below is 512 cm3, what is the length of AB?
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32.
Introduction to Trigonometry
32.1
Use sine ratio to calculate angles and sides (Sin = ho )
32.2
Use cosine ratio to calculate angles and sides (Cos = ha )
32.3
Use tangent ratio to calculate angles and sides (Tan = ao )
32.4
Combination of SohCahToa questions
32.5
Solving expressions using 45-45-90 special right triangles
32.6
Solving expressions using 30-60-90 special right triangles
32.7
Word problems relating ladder in trigonometry
32.8
Word problems relating guy wire in trigonometry
32.9
Other word problems relating angles in trigonometry
Don't just watch, practice makes perfect
Practice topics for Introduction to Trigonometry
32.1
Use sine ratio to calculate angles and sides (Sin = ho )
32.2
Use cosine ratio to calculate angles and sides (Cos = ha )
32.3
Use tangent ratio to calculate angles and sides (Tan = ao )
32.4
Combination of SohCahToa questions
32.5
Solving expressions using 45-45-90 special right triangles
32.6
Solving expressions using 30-60-90 special right triangles
32.7
Word problems relating ladder in trigonometry
32.8
Word problems relating guy wire in trigonometry
32.9
Other word problems relating angles in trigonometry