Ответ:
а) ABC=90°
ABD=25°
EBC=40°
DBE=90-(25+40)=25°
ә) ABE=180°
ABC=25°
CBD=90°
DBE=180-(90+25)=65°
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Ответ:
а) ABC=90°
ABD=25°
EBC=40°
DBE=90-(25+40)=25°
ә) ABE=180°
ABC=25°
CBD=90°
DBE=180-(90+25)=65°