25:57

Rang 5ú Fisic

27:39

Rang 5ú Mata

29:02

Rang 5ú Mata

33:45

Obair ranga 5ú Mata

27:22

Ch 7.2 : Using the Converse of the Pythagorean Theorem

29:42

Rang 6ú mata

29:09

Rang 6ú Mata

34:39

Rang 5ú Mata