Answer:
1. diameter AC
2. chord BC
3. center point of the circle O
4. radius OD
5. arc (minor) CD
1. 30°
2. 45°
3. 172.5°
4. 210° (arc ADH is a major arc)
5. 150° (arc AH is a minor arc)
Circles! My favorite lesson in Math.
That's all. Hope you get the perfect score.
