Math, asked by advit9500, 3 months ago

.The radius of a sphere is 3r then find its surface area.

Answers

Answered by CuteHubs

1

Answer:

113.14285714

Step-by-step explanation:

TSA = 4 π r²

= 4*22/7*3r*3r

= 4*22/7*9r²

= 113.14285714

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