Area of Annulus (Circular Ring) — Two Formulas, Perimeter, Width, Example
Website: https://math-stuff.com
In this video we derive two formulas for the area of a circular ring, also known as an annulus. To derive the first formula, we use the formula for the area of a circle from the previous video. The second formula shows the relation between the area, the perimeter, and the width of an annulus. We also use those formulas in an example.
Area of a Circle: • Area of Circle — Formula Derivation (Proof...
Timestamps:
00:00 - Intro
00:28 - Formula for the Area of an Annulus
01:04 - Example
01:36 - Perimeter and Width
02:51 - Another Formula for the Area of an Annulus
03:33 - Example
04:42 - Bonus Question
Image credit (Thumbs Up):
Image https://pixabay.com/users/OpenClipart... by OpenClipart-Vectors https://pixabay.com/users/OpenClipart... from Pixabay https://pixabay.com/