Justadumbemo
07.11.2020 •
Mathematics
Someone, pls. I need ur help.
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Ответ:
48°
Step-by-step explanation: AD=AB, ∠ADC=∠ABC.
(5x-147)°=2x°, 3x=147, x=49.
So, ∠ADC=∠ABC=98°,
∠DCB=360°-{116°+2(98°)}
=360°-(116°+196°)
=360°-312°
=48°
Ответ:
The answer is 19