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1.11 Vectors

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Question 32

In triangle $A B C$ , $AB⃗=2i+5j\vec{AB} = 2\mathbf{i} + 5\mathbf{j}$ and $AC⃗=7i+7j\vec{AC} = 7\mathbf{i} + 7\mathbf{j}$ .

Show that $ABC\,$ is an isosceles triangle.

[3]

Markscheme

1.11 Vectors Questions

A Level
Maths
1.11 Vectors

168 exam-style questions on OCR (MEI) A Level Maths 1.11 Vectors, covering 1.11.1 Language of vectors in two dimensions, 1.11.2 Add, subtract and scale vectors, 1.11.3 Magnitude and direction of a vector, 1.11.4 Position vectors, 1.11.5 Distance between points by position vectors, 1.11.6 Vectors to solve problems, 1.11.7 Language of vectors in three dimensions (A-level only), and 1.11 Vectors. Each one has a worked solution and a mark scheme showing where the marks go.

1.11 Vectors

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Question 32

In triangle $A B C$ , $AB⃗=2i+5j\vec{AB} = 2\mathbf{i} + 5\mathbf{j}$ and $AC⃗=7i+7j\vec{AC} = 7\mathbf{i} + 7\mathbf{j}$ .

Show that $ABC\,$ is an isosceles triangle.

[3]

Markscheme

1.11 Vectors Questions

A Level
Maths
1.11 Vectors