Ответы на вопрос:
1. ?
1(2). <2 = <3
<2+<3 = AOB - AOC = 180 - 120 = 60
<2 = 60 : 2 = 30
AOM = AOC + COM = 120 + 30 = 150
2. AOC = AOD - COD = 180 - 45 = 135
BOK = AOD - (COD+AOB) = 180 - (45+30) = 105
2(2). ? <1 = <2 *2 <2 = 180 - <1 ?
3.
3(2). ?
4. <2 = 180 - (<1+<3) = 180 - (60+40) = 80
<4= <1 = 60
<5= <2 = 80
<6= <3 = 40
Проверка: 80+80+60+60+40+40= 360
4(2). ?
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