How do you find the surface area of a hemisphere? (exclude the base) PLEASE AND THANK YOU (:

a = 11 : 4

b = 38

c = 1 for every 6

30 feet

step-by-step explanation:

that would be 2 1/2 * 12

= 24 + 6

= 30 feet   (answer)

d. you cannot tell because there are no values shown.

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

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