Question

Q3. If surface area of a sphere is 676 t cm^2, then find its radius​

Answer 1

Answer:

Given surface area of sphere=616cm^2.

=> 4πr^2 =616cm^2.

=>4×22/7r^2 =616cm^2.

=>88/7r^2=616cm^2.

=>r^2=616×7/88

=> r=√49cm =7cm...

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