Question

repede va rog am nevoie urgent dau coroana ​

Answer 1

Explicație pas cu pas:

< EOC = <FOB (sunt opuse la vârf) => <EOC = 15 grade

< AOB (este o linie dreapta) = 180 grade

< BOF = 90 grade - 15 grade = 75 grade

( cum < BOC are 90 grade=> < BOD are tot 90 grade)

< AOE = < BOF = 75 grade ( sunt opuse la vârf)

< BOE =< BOC + < COE

< BOC = 90 grade

< COE = 15 grade

< BOE = 90 +15 = 105 grade