Прокопенко Д.В. Площади треугольников и четырехугольников
Открытый урок о площади треугольника, четырёхугольника и квадрата.
Дата лекции: 19/10/2015
2 years ago 01:38:26 21
2 years ago 00:56:38 71
1 year ago 00:03:34 9
11 months ago 01:23:29 22
8 months ago 01:57:22 66
2 years ago 00:15:55 20
4 years ago 01:17:05 3
4 years ago 00:03:00 7
5 years ago 01:19:47 12
5 years ago 00:07:34 63
3 years ago 00:11:31 86
2 years ago 00:07:27 20
6 years ago 00:09:15 3
6 years ago 01:25:21 51
4 years ago 00:49:05 48
7 years ago 03:36:18 56
10 years ago 01:38:38 22
9 years ago 00:04:40 8
4 years ago 00:08:53 5
1 year ago 00:46:35 12
1 year ago 00:59:07 3
9 months ago 01:27:36 3
5 months ago 00:32:59 1
4 years ago 00:33:42 17
