Question

The diameter of a sphere whose surface area is 154cmis​

Answer 1

4 pie r^2=154

4 × 22/7 × r^2=154

4×22× r^2=154×7

r^2=154×7/4×22

r^2=49/4

r=root(49/4)

r=3.5cm

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Answer 2

Answer:

refer to the above attachment for solution