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Similar Triangles
Author:
Lee Ka Hei
The similar triangles ABC and ADE were created by selecting a point on side AB and constructing a line parallel to BC.
GeoGebra
Drag any vertex of triangle ABC to change the triangle or drag D to change the size of triangle ADE.
New Resources
alg2_05_05_01_slider_practice_flvs
alg2_05_05_01_applet_exp_2_flvs
Construct a Conic
Tutorial: Create lists of numbers and objects
Quiz: Finding Average Rate of Change
Discover Resources
Side-Side-Angle - The Ambiguous Case
Angles Formed by Lines and a Transversal
Sagnac effect - Real model
Start, Perpendicular Bisector
Angle Bisector
Discover Topics
Sine
Diagrams
Geometric Mean
Arithmetic Operations
Exponent