Pre-Algebra Examples

Step 1
The surface area of a cone is equal to the area of the base plus the area of the cone.
Step 2
Substitute the values of the length and height into the formula. Pi is approximately equal to .
Step 3
Multiply by .
Step 4
Simplify each term.
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Step 4.1
One to any power is one.
Step 4.2
Raise to the power of .
Step 4.3
Add and .
Step 4.4
Rewrite as .
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Step 4.4.1
Factor out of .
Step 4.4.2
Rewrite as .
Step 4.5
Pull terms out from under the radical.
Step 5
Simplify by multiplying through.
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Step 5.1
Apply the distributive property.
Step 5.2
Multiply by .
Step 6
Move to the left of .
Step 7
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
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