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The Cosine Rule

Card 1 of 22

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

A

The opposite angle (the angle opposite one of the known sides).

B

The exterior angle (the angle outside the triangle).

C

The included angle (the angle between the two known sides).

D

A non-included angle (an angle not between the two known sides).

Card 1 of 22

The Cosine Rule Flashcards

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

22 flashcards on CCEA GCSE Maths The Cosine Rule: the key formulae, methods and definitions you need to recall for Unit (M1–M4) and Completion Test Paper 1 and Paper 2 (M5–M8).

Flashcards