Height and Distance_Lesson #1(INTRODUCTION)
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Height and Distance_Lesson #2(BASIC QUESTIONS)
19:10
Time and Distance _LESSON #1(Introduction)
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Height and Distance_Lesson #3(ELEVATION/DEPRESSION)
20:57
Aptitude Made Easy - Heights And Distances, Math Tricks Part - 1
18:33
Théorème de Thalès : TOUT COMPRENDRE !
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La Beauté des Maths.
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MIEUX APPRENDRE & ÉTUDIER : les (vraies) techniques scientifiques
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