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Discuss: What information must we have to use the sine rule to calculate a missing length?

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Presentation on theme: "Discuss: What information must we have to use the sine rule to calculate a missing length?"— Presentation transcript:

1 Discuss: What information must we have to use the sine rule to calculate a missing length?

2 Two angle and one corresponding side

3 Discuss: What information must we have to use the sine rule to calculate a missing angle?

4 Two sides and one corresponding angle

5 Discuss: What information must we have to use the cosine rule to calculate a missing length?

6 Two sides and the angle between them

7 Discuss: What information must we have to use the cosine rule to calculate a missing angle?

8 All three sides are needed to calculate a missing angle

9 Sine or Cosine? ?

10 Sine or Cosine?

11 Sine or Cosine? ?

12 Sine or Cosine?

13 Sine or Cosine?

14 Find all the missing lengths within this 10 x 10 square
Acknowledgments: UEA and JustMaths

15

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