5y - 16 + 3y + 20 = 180 degrees
Combine like terms on the left side
8y + 4 = 180
Subtract 4 from both sides.
8y = 176
Divide both sides by 8
y = 22
Plug 22 into y for each angle.
3y + 20 = 3(22) + 20 = 66 + 20 = 86 degrees
5y - 16 = 5(22) - 16 = 110 - 16 = 94
The angle opposite 5y - 16 also equals 94 because they are vertical angles.
The angle opposite of 3y + 20 also equals 86 because they are vertical angles
X=2..............................
Answer:
Step-by-step explanation:
The solution of each question is self-explanatory.
<u>Used properties</u>
- Vertical angles are congruent
- Angle sum property of circle
- Central angle is same as intercepted arc measure
<h3>#8</h3>
- mED = mAB = mAC - mBC = 90° - 52° = 38°
<h3>#9</h3>
- mEA = mBCD = mBC + mCD = 52° + 90° = 142°
<h3>#10</h3>
- mBDC = 360° - mBC = 360° - 52° = 308°
I believe 8,000,000. I'm probably wrong though.
Answer:
I think it's the third answer.
Step-by-step explanation:
The line is going through those points.
