1) 1. Look at the circle. What part of a circle is QR? a) an arc b) a chord c) a radius d) a diameter 2) A line segment which, passes through the center and with endpoints that lie on the circle is called __________. a) chord b) secant of circle c) diameter d) tangent to a circle 3) If AB = 26 inches, what is AD? a) 52 in. b) 65 in. c) 260 in. d) 13 in. 4) Which of the following line segments is a chord? a) AC b) AB c) CE d) DE 5) If the diameter of a circle is 18 cm, what is the radius? a) 36 cm b) 6 cm c) 8 cm d) 9 cm

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