Verified answer

Answer:

radius = 2.8

Step-by-step explanation:

CSA of solid sphere

= 4πr²

4πr²=98.56

4×22/7×r²= 98.56

r²=98.56×7/88

r²= 689.92/88

r²= 7.84

r= √7.84

r=2.8

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