The Cosine Rule

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Question 22

Three points $X$ , $Y$ , and $Z\,$ represent towns on a map. The distance from town $X\,$ to town $Y\,$ is 18.2 km, the distance from town $Y\,$ to town $Z\,$ is 24.5 km, and the distance from town $X\,$ to town $Z\,$ is 13.6 km.

Work out the size of angle $X Y Z$ .
Give your answer to 3 significant figures.

[3]

The Cosine Rule

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Question 22

Three points $X$ , $Y$ , and $Z\,$ represent towns on a map. The distance from town $X\,$ to town $Y\,$ is 18.2 km, the distance from town $Y\,$ to town $Z\,$ is 24.5 km, and the distance from town $X\,$ to town $Z\,$ is 13.6 km.

Work out the size of angle $X Y Z$ .
Give your answer to 3 significant figures.

[3]

The Cosine Rule

Question 22

The Cosine Rule Questions

The Cosine Rule

Question 22

The Cosine Rule Questions