Learn about three trigonometric ratios in similar right-angled triangles with this BBC Bitesize Maths article. For students between the ages of 11 and 14.
Introduction to trigonometry for right-angled triangles - KS3 Maths - BBC Bitesize
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Pythagoras' theorem - Part 1 - KS3 Maths - BBC Bitesize
Pythagoras' theorem - Part 1 - KS3 Maths - BBC Bitesize
Pythagoras' theorem - Part 2 - KS3 Maths - BBC Bitesize
Pythagoras' theorem - Part 1 - KS3 Maths - BBC Bitesize
Pythagoras' theorem - Part 2 - KS3 Maths - BBC Bitesize
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Pythagoras' theorem - Part 2 - KS3 Maths - BBC Bitesize