The Cosine Rule

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Question 4

67%

A triangle with vertices $A$ , $B$ , and $C\,$ is shown. Side $AB\,$ has a length of 8 m, and side $AC\,$ has a length of 11 m. The angle at vertex $A\,$ is $35∘35^\circ$ .

Triangle ABC with AB labelled 8 m, AC labelled 11 m, and angle BAC labelled 35 degrees.

Work out the length of $B C$ .
Give your answer to 3 significant figures.

[3]

The Cosine Rule

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Question 4

67%

A triangle with vertices $A$ , $B$ , and $C\,$ is shown. Side $AB\,$ has a length of 8 m, and side $AC\,$ has a length of 11 m. The angle at vertex $A\,$ is $35∘35^\circ$ .

Triangle ABC with AB labelled 8 m, AC labelled 11 m, and angle BAC labelled 35 degrees.

Work out the length of $B C$ .
Give your answer to 3 significant figures.

[3]

The Cosine Rule

Question 4

Markscheme

The Cosine Rule

Question 4

Markscheme

The Cosine Rule

Question 4

The Cosine Rule Questions

The Cosine Rule

Question 4

The Cosine Rule Questions