A is the point (3, 4, 8), B is the point (1, 2, 5) and C is
Question:
A is the point (3, 4, 8), B is the point (1, −2, 5) and C is the point (7, −5, 7).
a. Find the vectors AB, AC and BC .
b. Hence find the lengths of the sides of triangle ABC.
c. Given that angle ABC = 90° find the size of angle BAC.
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Related Book For
Pearson Edexcel A Level Mathematics Pure Mathematics Year 2
ISBN: 9781292183404
1st Edition
Authors: Greg Attwood, Jack Barraclough, Ian Bettison, David Goldberg, Alistair Macpherson, Joe Petran
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