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Use sine ratio to calculate angles and sides (Sin = ho )
- Intro Lesson13:03
- Lesson: 12:53
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- Lesson: 3a2:57
- Lesson: 3b1:32
- Lesson: 3c1:09
- Lesson: 4a1:52
Use sine ratio to calculate angles and sides (Sin = ho )
One of the trigonometric ratios is sine ratio. It is the opposite side over the hypotenuse of right triangles. In other words, we can find the angles and sides of right-angled triangles by using the sine ratios.
Lessons
- IntroductionWhat are sine, cosine and tangent?
- 1.Determine each sine ratio using a calculatora)sin60∘b)sin−60∘
- 2.Determine the angle to the nearest degree using a calculatora)sinθ=0.57b)sinθ=−0.65
- 3.Determine the angles and sides using Sine ratioa)Find angle A and B:
b)Find the value of "x" using sine
c)Find the value of "x" using sine
- 4.Draw and label a right triangle to illustrate sine ratio, then calculate the angle.a)sinθ=135
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22.
Trigonometry
22.1
Use sine ratio to calculate angles and sides (Sin = ho )
22.2
Use cosine ratio to calculate angles and sides (Cos = ha )
22.3
Use tangent ratio to calculate angles and sides (Tan = ao )
22.4
Combination of SohCahToa questions
22.5
Solving expressions using 45-45-90 special right triangles
22.6
Solving expressions using 30-60-90 special right triangles
22.7
Word problems relating ladder in trigonometry
22.8
Word problems relating guy wire in trigonometry
22.9
Other word problems relating angles in trigonometry
22.10
Sine rule
22.11
Cosine rule
22.12
Application of the sine rule and cosine rule
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Use sine ratio to calculate angles and sides (Sin = ho )
Don't just watch, practice makes perfect.
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Get Started NowPractice topics for Trigonometry
22.1
Use sine ratio to calculate angles and sides (Sin = ho )
22.2
Use cosine ratio to calculate angles and sides (Cos = ha )
22.3
Use tangent ratio to calculate angles and sides (Tan = ao )
22.4
Combination of SohCahToa questions
22.5
Solving expressions using 45-45-90 special right triangles
22.6
Solving expressions using 30-60-90 special right triangles
22.7
Word problems relating ladder in trigonometry
22.8
Word problems relating guy wire in trigonometry
22.9
Other word problems relating angles in trigonometry