7.6, 8.2, 8.8, 9.4, 10.0, 10.6, 11.2, 11.8, 12.4
The measure of the Central Angle indicated is; 45°
<h3>How to find the central angle of a circle?</h3>
The central angle will be the angle subtended at the center by arc FE and arc CB.
Now, we see that angle ∠FOB = 135° and since we know that sum of angles on a straight line is 180°, then we can say that;
Central Angle = 180° - 135° = 45°
Angle subtended by Arc CD at the center is;
θ = 180 - (81 + 45)
θ = 54°
Read more about Central Angle at; brainly.com/question/17074363
#SPJ1
<u>Step-by-step explanation:</u>
30 + 2x = 90
2x = 60
x = 30
Answer:
x = 30
