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Broken Protractor
Author:
John Ulbright
Topic:
Angles
What angle measure is indicated by the red arrow? Click "more info" to refine your guess.
GeoGebra
New Resources
Hexagonal curves animation
Poorly Drawn Parallelograms 3
Construct a Conic
Quiz: Finding Average Rate of Change
Poorly Drawn Parallelograms 2
Discover Resources
Division Concepts
Linear transformation matrix
Activity 1: Exploring Reflections
Re-parametrization of Vector functions and their derivatives
AM 2015 P1 Q5
Discover Topics
Exponential Functions
Random Experiments
Numbers
Arithmetic Operations
Percentages