Cosine Rule and Area of Triangle

Examples, solutions, videos, games, activities and worksheets that are suitable for GCSE Maths.
How to find the area of a triangle given 3 sides using the cosine and sine rule?

Cosine Rule and Area of any triangle
GCSE Maths revision Exam paper practice
Cosine rule, Pythagoras' theorem, area of triangle = 1/2ab Sin C

Trigonometry in any triangle (cosine rule)
GCSE Maths revision Exam paper practice & help

GCSE Maths Revision: Exam paper practice Cosine rule and area of any triangle

Cosine Rule: finding the area of a triangle given 3 sides

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