Pre-Algebra Examples

Step 1
The surface area of a sphere is equal to times Pi times the radius squared.
Step 2
Substitute the value of the radius into the formula to find the surface area of the sphere. Pi is approximately equal to .
Step 3
Multiply by by adding the exponents.
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Move .
Multiply by .
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Raise to the power of .
Use the power rule to combine exponents.
Add and .
Step 4
Raise to the power of .
Step 5
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
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