6. What is the angle at the circumference in a semicircle?
- 360
- 180
- 90
- 45
7. Is the angle at the centre:
- Half the size of the angle at the circumference.
- Twice the size of the angle at the circumference.
- Three times the size of the angle at the circumference.
- There is no correlation between the circumference and the centre.
8. At what angle does a tangent and radius meet?
- 360
- 45
- 90
- 180
9. What kind of triangle do two radii form?
- Isosceles.
- Scalene.
- Right-angled.
- Obtuse.
