Question

# Find the surface area of a sphere.

A
452.16ft2
B
455.16ft
C
452.16 cm2
D
455.16 m2

Solution

## The correct option is A $$\displaystyle 452.16{ ft }^{ 2 }$$We know, surface area of sphere, $$A=4\pi r^2$$.Given, radius, $$r=6\ ft$$.After substituting the value in the formula we get:Surface area of the sphere,$$A=4\times3.14\times6^2$$$$=4\times3.14\times6\times6$$$$=452.16\ ft^2$$.Therefore, option $$A$$ is correct.Mathematics

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