Question

find the surface area of a sphere whose diameter is 7cm​

Answer 1

Radius = Diameter/2 = 7/2 cm

TSA = 4πR²

= 4×22/7×7/2×7/2 = 22×7 = 154cm²

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Answer 2

Answer:

surface area is 4pi R square

Step-by-step explanation:

ans is 153.86 c square

you first divide diameter by two to find radius then use formula

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