IGCSE Maths / Further trigonometry

Trigonometry in pyramids and cones revision notes

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

Watch the video lesson · IGCSE Maths past papers

Use a right-angled triangle to solve problems involving the sloping edge of a pyramid or cone. For a square-based pyramid, find the distance from a base corner to the centre by halving the base diagonal.

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
• The angle between a line and a plane
• Problem solving in three dimensions