Math, asked by RS1316, 10 months ago

tsa of sphere is 154cm^2 find radius

Answers

Answered by cark

1

Step-by-step explanation:

tsa =2πr2

154=2πr2

154/2=πr2

77=πr2

77=22/7×r2

77×7/22=R2

49/2=R2

7/√2=r

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