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Теорема за мярката на ъгъл, чийто връх е вътрешна точка за окръжността
Author:
Янка Виткова
GeoGebra
New Resources
探究由平行線和截線所成的角
alg2_05_05_01_applet_exp_2_flvs
Variation Theory Parallelogram Proofs
Poorly Drawn Parallelograms 2
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Discover Resources
Endless Factoring Practice
Linear Pair
regular polygon area
Transformation Practice
Integrals