Respuesta :

9514 1404 393

Answer:

  10π meters

Step-by-step explanation:

The circumference of the island is given by ...

  C = πd

For the given diameter, the circumference is ...

  C = π(20 m) = 20π m

The penguin swam half that distance, so swam ...

  (1/2)(20π m) = 10π m

The penguin swam 10π meters.