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3D Mirascope
Author:
Jason Wrinkle
,
Roy Wright
A 3D real image can be produced by joining two parabolic reflectors.
GeoGebra
In the illustration, the red points can be moved to change the shape of the parabolas. The foci of the parabolas are marked with x's. The frog can also be moved.
New Resources
Odd or Even
Angles and Intersecting Lines: Quick Investigation
Slope of a Straight Line: Run and Rise
Bottema's Theorem
Slope Field (1)
Discover Resources
Blank Applet
角的大小與角兩臂的粗幼有關?
Net of a cube
เกมส์
Rotating 2D shapes to make 3D Shapes
Discover Topics
Division
Difference and Slope
Vectors 2D (Two-Dimensional)
Confidence Interval
General Quadrilateral