Կենտրոնային և ներգծյալ անկյուններ
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<ABC=UAC/2=240
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<ABC=57/2=28.50
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<ABC=UAC/2=90/2=450
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<ABC=124/2=620
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Ա)<x=360-(152+80)=128/2=640
Բ)<x=360-(30*2+125)=1750
Գ)<x=360-(112+180)=68/2=340
Դ)<x=360-(215+20*2)=1050
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UAB=2x=>x+30=2x=>x=30=><ACB=30, <AOB=60
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<UCB=360-(43+115)=2020
<BAC=202/2=1010
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<UALB=(360/(4+6))*6=2160
<UAiB=(360/(4+6))*4=1440
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6+5=11
<UAB=360-140=220
<UAM=6*(220/11)=1200
<UBM=360-120-140=1000
<BAM=100/2=500
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<UAC=360-164=1960
<ABC=196/2=980