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parabola+triangle
Author:
魏寅生
Topic:
Parabola
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Morley's Trisector Theorem
Demo: dashed trace
Comparing Fractions
Music Box with Rotating Ballerina
G_10.04 Parallel and perpendicular lines_1a
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Geometry Problem #11
Summing Angles Practice w/ Feedback
POCPAnglebisectorsintriangle
Exact Values of Some Trig Functions
Central and Inscribed Angles
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Linear Functions
Fractions
Variance
Centroid or Barycenter
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