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  • What is the diameter of a circle?
    The diameter of a circle is a straight line segment that passes through the center of the circle and connects two points on the circle's circumference.
  • A circular pizza has a diameter of 14 inches. What is the circumference of the pizza? Answer: The formula for the circumference of a circle is C = 2πr, where r is the radius.
    approximately 44inches.
  • A tire has a radius of 15 inches. What is the circumference of the tire?
    about 94 inches
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