1) A ___ is two times the radius of a circle. a) Center b) Circumference c) Radius d) diameter 2) The _________ is a point in the middle of a circle. a) center b) chord c) Diameter d) circumference 3) A circle has a radius of 12 cm. What is its diameter? a) 18cm b) 24cm c) 6cm d) 12cm 4) A ___ is a line segment that passes through the center of a circle. a) Chord b) Radius c) Diameter d) circumference 5) A circle has a radius of 17 cm. What is its diameter? a) 71cm b) 8cm c) 17cm d) 34cm 6) A circle has a radius of 30 cm. What is its diameter? a) 15cm b) 45cm c) 60cm d) 30cm 7) The distance around a circle is the ______ . a) radius b) diameter c) chord d) circumference 8) A ___ is half the diameter of a circle. a) chord b) radius c) diameter d) center 9) A ___ is a line segment that does not pass through the center of a circle. a) Chord b) Radius c) Diameter d) Center 10) A circle has a diameter of 16 cm. What is its radius? a) 4cm b) 8cm c) 32cm d) 16cm

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