На рисунке изображён поворот четырёхугольника относительно начало кординат o на угол 180 градусов. 1) проанализируйте кординаты полученной фигуры относительно исходной фигуры и обобщите своё мнение. 2) по рисунку запишите все возможные конгруэнтные отрезки.
1) 1/8+2/9=(1*9+2*8)/72=(9+16)/72=25/72
2) 25/72-1/4=(25*1-1*18)/72=7/72
3) 7/72*5 1/7=7/72*36/7=1/2
4) 7/9-2/3=(7*1-2*3)/9=1/9
5)1/9+1/6=(1*2+1*3)/18=5/18
6)1/2: 5/18=1*18/2*5=18/10=9/5=1 целая 4/5
(10 3/4-12:1 1/5) *4/9+2 1/6 +3 1/4:5 1/5=3 целых 1/8
1) 12: 1 1/5=12: 6/5= 12*5/6=60/6=10
2) 10 3/4 -10=43/4-10=(43*1-10*4)/4=3/4
3) 3/4*4/9=12/36=1/3
4) 1/3+ 2 1/6=1/3+13/6=(1*2+13*1)/6=15/6=2 3/6= 2 1/2
5) 3 1/4:5 1/5=13/4 : 26/5= 13*5/4*26=65/104=5/8
6) 2 1/2+5/8=5/2+5/8=(5*4+5*1)/8=25/8=3 целых 1/8
Kazakhstan gained independence about twenty years ago, after the collapse of the Soviet Union. But the national culture of Kazakhstan many centuries ago began to create the Kazakhs, nomads, who spend most of life spent in the saddle. Endless steppes and semi-deserts, overgrown fescue, feather-grass, wormwood and tercica, were their only riches.
Now our country is home to people of different cultures: Kazakhs, Russians, Uzbeks, Ukrainians, Uighurs, Tatars and others. Every resident of Kazakhstan knows the Kazakh language is the language of the Kazakh nation. Also recognized as the official language of Russian as language of interethnic communication. People in Kazakhstan live free, and not crowded. There are a lot of lands and people on them have a little.