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Estimate the flagpole height using shadows
Author:
Thomas F. Reid
GeoGebra
New Resources
Icosahedron
Ellipse, Hyperbola and Circle as Envelopes
Thin Slice: Arc Length & Sector Area
Viviani's Window
Hexagonal curves animation
Discover Resources
Ball reflection in rectangle (trajectory)
Special circle passing through the intersection of two given
Wave interference
Mock B Q14 (circle, locus)
Rectangles
Discover Topics
Subtraction
Differential Calculus
Percentages
Cylinder
Rhombus