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The Cosine Rule

The Cosine Rule

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Genie and Baby Genie

Questions

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36 exam-style questions

Practice questions

Question 1

3 marks

A surveyor measures the distances between three markers, AAA, BBB, and CCC, placed on a plot of land. The distance AB AB\,AB is 6.4 m, the distance BC BC\,BC is 5.5 m, and the distance AC AC\,AC is 8.1 m.

Flashcards

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22 flashcards

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Which angle must be known to find a missing side using the Cosine Rule?

The Cosine Rule Revision Guide

  1. GCSE
  2. /Maths
  3. /The Cosine Rule

Revision notes for OCR GCSE Maths The Cosine Rule. Open the guide for explanations and worked examples. Written against the OCR GCSE Maths (J560) specification, so the content matches what's examinable rather than general Maths background.

Practise questions

1 of 5

Two sides of a triangle are 6 cm and 8 cm, and the angle between them is 50∘50^\circ50∘. Which side can be found directly using the Cosine Rule?