Pre-Algebra Examples

The surface area of a cone is equal to the area of the base plus the area of the cone.
Substitute the values of the length , the height , and an approximation for into the formula.
Simplify each term.
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Remove parentheses around .
Raise to the power of .
Multiply by .
Multiply by .
Remove parentheses around .
Raise to the power of .
Remove parentheses around .
Raise to the power of .
Add and .
Rewrite as .
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Factor out of .
Rewrite as .
Pull terms out from under the radical.
Simplify .
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Multiply by .
Multiply by .
Add and .
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