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Euclid's Elements - Book III, Proposition 18
Author:
mtpberg
Topic:
Circle
A line tangent to a circle is perpendicular to the radius at the point of tangency.
GeoGebra
New Resources
Average Rate of Change: Graph a Function (2)
alg2_05_05_01_applet_exp_2_flvs
Shade a spheric triangle with "surface".
Finding Average Rate of Change of a Function
Droste effect
Discover Resources
First order difference equation with timegraph and phase dia
Centroids
Discovering Inverse Functions
Equilateral Triangle
M22 - Orthog. Proj.
Discover Topics
Reflection
Addition
Congruence
Centroid or Barycenter
Poisson Distribution