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12.3 Solving Geometric Problems

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Question 8

Relative to a fixed origin OOO, the point A A\,A has position vector (5i−2j−6k)(5\mathbf{i} - 2\mathbf{j} - 6\mathbf{k})(5i−2j−6k), the point B B\,B has position vector (8i+2j−8k)(8\mathbf{i} + 2\mathbf{j} - 8\mathbf{k})(8i+2j−8k), and the point C C\,C has position vector (6i+8j−4k)(6\mathbf{i} + 8\mathbf{j} - 4\mathbf{k})(6i+8j−4k).

a.

Find AB⃗\vec{AB}AB

[2]
b.

Show that the quadrilateral OABC OABC\,OABC is a trapezium, giving reasons for your answer.

[2]
Markscheme

12.3 Solving Geometric Problems Questions

  1. A Level
  2. /Maths
  3. /12.3 Solving Geometric Problems

67 exam-style questions on Edexcel A Level Maths 12.3 Solving Geometric Problems. Each one has a worked solution and a mark scheme showing where the marks go.

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