MathematicsWhich of the following is the surface area of a sphere of diameter 10 cm?

Which of the following is the surface area of a sphere of diameter 10 cm?

It is given a sphere with a diameter as 10 cm.

d = 10 cm

r = 5 cm

Surface area of sphere,

A = 4 π r^{2}

.
Substituting the values in the formula,

A = 4 \times 3.14 \times 5^{2}

A = 4 \times 3.14 \times 5 \times 5

A = 314 c m^{2}

Hence, the surface area of the sphere is

314 c m^{2}

.
Therefore, option 2 is correct.

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