Right-angled trigonometry
Why this, why now
In this unit, pupils are introduced to a variety of situations where trigonometric ratios are required, such as 3-D problems and problems of elevation or depression.
Prior knowledge requirements
- Ardaydu waa inay yaqaanaan aasaaska maadada.
- Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 20 / 21
Right-angled trigonometry
In this unit, pupils are introduced to a variety of situations where trigonometric ratios are required, such as 3-D problems and problems of elevation or depression.
14 lessons- Checking and securing understanding of cosine problems
- Checking and securing understanding of sine ratio problems
- Calculate trigonometric ratios for 0°, 45° and 90°
- Applying Pythagoras' theorem in 3D
- Calculate trigonometric ratios for 30° and 60°
- Problem solving with right-angled trigonometry
- Applying trigonometric ratios in 3D
- Applying trigonometric ratios in context
- Using Pythagoras' theorem to justify a right-angled triangle
- Calculating the length of a line segment
- Checking and securing understanding of the unit circle
- Checking and further securing understanding of Pythagoras' theorem
- Checking and securing understanding of tangent ratio problems
- Advanced problem solving with right-angled trigonometry