Respuesta :

Answer:

The radius is 4.

Step-by-step explanation:

Concepts:

  • Diameter is usually defined as a straight line passing through the center of a circle or sphere and meeting the circumference or circle at each end.
  • Radius is usually defined as a straight line extending from the center of a circle or sphere to the circumference of surface. (Half of diameter).

To figure this out:

R = 1/2 d

R = 1/2 8

R = 4

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