Verified answer

Ответ:

a) ∠AOB=72°

b) x=59°43'

c) x=50°45'

Объяснение:

a)

∠AOB=∠AOE+∠EOB=32°+40°=72°

b)

1°=60'

∠AOE=∠AOB-∠EOB=120°38'-60°55'=

=119°98'-60°55'=59°43'

c)

∠BOC=∠AOD-∠AOB-∠COD=

=105°45'-25°-30°=50°45'