Question

Easy points..........

Answer 1

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°