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Complementary Angles
Author:
stampinpost
Topic:
Angles
Move D between H and B to see the relationship between complementary angles.
GeoGebra
New Resources
alg2_05_05_01_applet_exp_flvs
Variation Theory Parallelogram Proofs
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Average Rate of Change: Graph a Function (2)
探究由平行線和截線所成的角
Discover Resources
Alternate angles
Reflection(With segments)
Special Parallelograms
Conics Example 2
Similar Right Triangles
Discover Topics
Similarity Transformation or Similarity
Real Numbers
Difference and Slope
Standard Deviation
Binomial Distribution