Question

I am struggling with this question pls help me.

Answer 1

xplanation:

Tsa = 3 pi r^2 = 243 pi

      = 3 r^2 = 243

      = r^2 = 243/3 = 81

     = r = root of 81

      = r = 9

vol = 2/3 pi r^3 = 2/3 pi 9^3 = k pi

= 2 x 243 = k

= 486 = k

i hope this is the answer!!!

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Answer 2

Answer:

answer is in above photograph may be this will help you . best wishes