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How to derive the area of a circle from scratch (1 min 34 secs): Part 8
What you *need* in order to follow this video series:
1. Algebraic skills {http://mathsvideos.net/useful-algebraic-formulas/}
You need to know that: √(ab) = √a√b
2. Trigonometry skills:
- Unit circle {https://scontent-lhr3-1.xx.fbcdn.net/v/t31.0-8/14324643_627264727441617_168387912534466908_o.jpg?oh=ea3f9cec2389ced6eaa76830057e7d85&oe=58FE04F9}
...
https://www.youtube.com/watch?v=1JdE9ngJE4A
1. Algebraic skills {http://mathsvideos.net/useful-algebraic-formulas/}
You need to know that: √(ab) = √a√b
2. Trigonometry skills:
- Unit circle {https://scontent-lhr3-1.xx.fbcdn.net/v/t31.0-8/14324643_627264727441617_168387912534466908_o.jpg?oh=ea3f9cec2389ced6eaa76830057e7d85&oe=58FE04F9}
...
https://www.youtube.com/watch?v=1JdE9ngJE4A
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If you'd like to see the animation, visit: https://www.instagram.com/p/CcXba8rlXS6/
For more geometry and mathematics proofs videos, ensure you are subscribed to my channel as I'll be producing a lot more content!
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Wherever you are in the world, thanks for watching and have a fabulous day, or evening!
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In this video - I show you how to demonstrate, from first principles, why the surface area of a cuboid is dependent on its length, width and height. In the process we discover the formula S(l, w, h)=2(l(w+h)+wh) which can be used to calculate the surface area of any cuboid. I hope you enjoy this video, and if you have any questions, leave them in comments section. Thanks for watching!
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