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GeoGebra
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Doppler Effect & Sonic Boom
Author:
GilbertBett
,
Tom Walsh
Use the sliders to adjust the speed of the sound source and the sound observer.
GeoGebra
New Resources
繪畫垂直線
Writing and Graphing Proportional Relationships (k>0)
Slope Illustrator (2)
Pythagorean Theorem: Quick Illustrator
Linear Equation Graphs: Thin Slice
Discover Resources
Basic (Right Triangle) Trigonometric Functions
Ford Circles and Farey Sequences
four centers of triangles
comparison 9-17-18
My Shape
Discover Topics
Rotation
Cuboid
Parallelogram
Isosceles Triangles
Perimeter