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Elliptical Ceiling Reflecting Sound
Author:
andy1987
Elliptical ceilings reflect sounds from one focus to the other focus.
GeoGebra
Drag the Speaker around to see where the sound reflects.
New Resources
以百分數比較兩個數值
Proving Triangles Congruent (2): Multi-Step Transformations
Example of using color palette
רישום חופשי
Constructing the Midpoint and the Perpendicular Bisector of a Segment
Discover Resources
Circles and Pythagorean Theorem
Locus
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Graph Isomorphism 0
Discover Topics
Square
Derivative
Incircle or Inscribed Circle
Planes
Unit Circle