Question

The surface erea of a sphere is 440 cm²,what will be it's diameter?
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Answer 1

Using the formulas

Using the formulasA=4πr2

Using the formulasA=4πr2d=2r

Using the formulasA=4πr2d=2rSolving ford

Using the formulasA=4πr2d=2rSolving fordd=A

Using the formulasA=4πr2d=2rSolving fordd=Aπ=440

Using the formulasA=4πr2d=2rSolving fordd=Aπ=440π≈11.83454cm

Hope it helpful ✌️✌️✌️