evanvessels
evanvessels
18-05-2022
Mathematics
contestada
easy points..........
Respuesta :
mhanifa
mhanifa
18-05-2022
Answer:
38°; 142°; 308°
Step-by-step explanation:
The solution of each question is self-explanatory.
Used properties
Vertical angles are congruent
Angle sum property of circle
Central angle is same as intercepted arc measure
#8
mED = mAB = mAC - mBC = 90° - 52° = 38°
#9
mEA = mBCD = mBC + mCD = 52° + 90° = 142°
#10
mBDC = 360° - mBC = 360° - 52° = 308°
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