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Find the Surface Area cone (12)(9)

Find the Surface Area cone (12)(9)
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 and height into the formula. Pi is approximately equal to .
Move to the left of .
Simplify each term.
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Raise to the power of .
Raise to the power of .
Add and .
Rewrite as .
Pull terms out from under the radical, assuming positive real numbers.
Simplify the expression.
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Add and .
Multiply by .
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
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