Find the area of the annulus (purple ring) based on the given the chord length of CD.
Does the area change when you drag B to vary the outer circle?
Instructional on How to Calculate the Area of an Annulus
Area of an Annulus
Area of Annulus
Bourke High School - Area of an Annulus
Tessellation #2 Part 6
Types of Systems
Coxeter- Exercise 2.5.4
Definition of Sine, Cosine and Tangent
Inscribed Quadrilateral and angles
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Components of a Space Suit
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Phantom Graph x^4/(1-x^2)
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