Pre-Algebra Examples

The surface area of a sphere is equal to times Pi times the radius squared.
Substitute the values of the radius and an approximation for Pi into the formula to find the surface area of the sphere.
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 .
Raise to the power of .
Multiply by .
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