IGCSE Maths / Further trigonometry

The angle between a line and a plane revision notes

Edexcel International GCSE Maths (4MA1), chapter 25: Further trigonometry, specification point 4.8f. Part of the full course.

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The angle between a line and a plane is the angle between the line and its shadow on the plane. Find the shadow first, then use the right-angled triangle formed by the shadow and the vertical height.

More lessons in Further trigonometry

• The sine rule: finding a missing side
• The sine rule: finding a missing angle
• The ambiguous case of the sine rule
• The cosine rule: finding a missing side
• The cosine rule: finding a missing angle
• Choosing between the sine rule and the cosine rule
• Area of a triangle using half ab sin C
• Finding a side or an angle from a given area
• Area of a segment
• Trigonometry in pyramids and cones
• Problem solving in three dimensions