Circles True or False

1.	Which of the following is a false statement? -> A diameter of a circle is also a chord of the same circle. True False
2.	⊙O has a radius of 2 cm. What is the length of the longest chord of ⊙O you can possibly draw? -> 4 cm True False
3.	In the figure below, AC and BD are diameters of ⊙O. AB must be congruent to what other segment? -> CD True False
4.	An angle is inscribed in a circle and intercepts an arc with measure 78°. What is the measure of the inscribed angle? -> 39° True False
5.	In the figure below, points A, B, and C are on ⊙O. Which of the following must be true? -> m∠AOB = 2 × m∠ACB True False
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° True False
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? -> AC > AB True False
8.	Which of the following measures cannot be the measure of an inscribed angle? -> 180° True False
9.	An inscribed angle has a measure of 45°. What is the measure of the arc it intercepts? -> 180° True False
10.	An inscribed angle has a measure of 58°. What is the measure of the arc it intercepts? -> 116° True False

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