Card 1 of 22
Which angle must be known to find a missing side using the Cosine Rule?
A
A non-included angle (an angle not between the two known sides).
B
The included angle (the angle between the two known sides).
C
The opposite angle (the angle opposite one of the known sides).
D
The exterior angle (the angle outside the triangle).
Card 1 of 22
The Cosine Rule Flashcards
22 flashcards on WJEC GCSE Maths The Cosine Rule: the key formulae, methods and definitions you need to recall for Unit 1, Unit 2 and Unit 3.