Area of Circle — Formula Derivation Proof Example

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=1BAl7yqIDMk

Website: https://math-stuff.com • In this video we derive the formula for the area of a circle. To derive it, we use the formula for the circumference (perimeter) of a circle. We show that the area of a circle is equal to the area of a rectangle whose one side is equal to the radius of the circle and the other side is equal to one half of the circumference. In the end, we use the formula for the area of a circle in an example. • Timestamps: • 00:00 - Intro • 00:13 - Circumference of a Circle • 00:41 - Dividing Circle into Parts • 01:30 - Various Numbers of Parts • 01:47 - Formula for the Area of a Circle • 02:28 - Example • 03:58 - Bonus Problem • Image credit (Thumbs Up): • Image https://pixabay.com/users/OpenClipart... by OpenClipart-Vectors https://pixabay.com/users/OpenClipart... from Pixabay https://pixabay.com/

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