# Circles

### Quizzes

1. |
Which of the following is a false statement? -> A diameter of a circle is also a chord of the same circle. |

2. |
⊙O has a radius of 2 cm. What is the length of the longest chord of ⊙O you can possibly draw? -> 4 cm |

3. |
In the figure below, AC and BD are diameters of ⊙O. AB must be congruent to what other segment? -> |

4. |
An angle is inscribed in a circle and intercepts an arc with measure 78°. What is the measure of the inscribed angle? -> 39° |

5. |
In the figure below, points A, B, and C are on ⊙O. Which of the following must be true? -> m∠ |

6. |
In the figure below, points A, B, and C are on the circle and AB = BC = CA. What is the measure of arc AB? -> 120° |

7. |
In the figure below, points A, B, and C are on the circle and ∠ACB is a right angle. Which of the following statements must be true? -> |

8. |
Which of the following measures cannot be the measure of an inscribed angle? -> 180° |

9. |
An inscribed angle has a measure of 45°. What is the measure of the arc it intercepts? -> 180° |

10. |
An inscribed angle has a measure of 58°. What is the measure of the arc it intercepts? -> 116° |