Respuesta :

Aisin

Answer:

Approximately 8.234 inches.

Step-by-step explanation:

The area for a sphere is 4πr²

=> r² = 213 : 4 : π = approx. 16.95
=> r = sqrt (16.95) = approx. 4.117

=> d = 4.117 x 2 = approx. 8.234 inches

hope this helps :o