Pre-Algebra Examples

The surface area of a cylinder is equal to the sum of the areas of the bases each having an area of , plus the area of the side. The area of the side is equal to the area of a rectangle with length (the circumference of the base) times the height.
Substitute the values of the radius , the height , and an approximation for into the formula.
Simplify each term.
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Multiply by .
Remove parentheses around .
Raise to the power of .
Multiply by .
Multiply by .
Multiply by .
Multiply by .
Add and .
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