Question

find the surface area of a sphere of diameter 28 ​

Answer 1

ANSWER

Surface area of sphere =4πr ^2

diameter = d/2 = 28/2 = 14

=4×π×(14) ^2

=2463.01

Answer 2

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$\bf{Surface \: area:-4πr²}</p><p>$

$\bf{Radius=\frac{Diameter}{2}}$

$Radius=\frac{28}{2}=14cm$

$Surface \: area=\frac{22}{7}×\frac{22}{7}×\frac{22}{7}×\frac{22}{7}×14×14= 2463.01$

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