1) Circles have the following characteristics. Which is true? a) Has a right angle b) Has no angles at all c) Has four sides d) Has sides of varying lengths 2) What is the formula for the area of a circle? a) πr b) πr2 c) 2πr d) 2π 3) What is the formula for the perimeter of a circle? a) πr b) πr2 c) 2πr d) 2π 4) If the radius of a circle is 7 cm, what is the circumference of the circle? a) 22 b) 44 c) 14 d) 49 5) What is the area of a circle with a diameter of 28 cm? a) 308 b) 144 c) 656 d) 616 6) Which of the following statements is true about all circles? a) The diameter is half of the radius. b) The circumference is twice the area. c) The radius is half of the diameter. d) The area is twice the radius. 7) The area is twice the radius.Circle A has a radius of 6 cm, and Circle B has a diameter of 10 cm. Which circle has a larger area? a) Circle A b) Circle B c) Both have the same area d) Cannot be determined

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