GCSE Maths - How to Find the Area of a Triangle

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*** WHAT'S COVERED ***
1. The two main formulas for calculating the area of a triangle.
2. How to identify the base (b) and vertical height (h) for the first formula.
3. How to identify the two sides (a, b) and the included angle (C) for the second formula.
4. Solving problems where an extra step is needed before applying an area formula.
* Using Pythagoras' theorem to find a missing side first.
* Using the angle sum of a triangle (180°) to find a missing angle first.

*** EXAM BOARD INFO ***
This video is suitable for maths courses around the world.
KS3 - Varies by school
GCSE Foundation - All on your course
GCSE Higher - All on your course
A-level - All on your course

*** CHAPTERS ***
0:00 Intro & The Two Area Formulas
0:49 Area = 0.5 x base x height (Formula 1)
0:59 Examples using Formula 1
1:58 Area = 0.5 x a x b x sin(C) (Formula 2)
2:38 Examples using Formula 2
3:58 Problems Requiring Extra Steps
4:13 Examples

*** PLAYLISTS ***










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