Find the Surface Area cone (72)(30)

Math
h=72r=30
The surface area of a cone is equal to the area of the base plus the area of the cone.
(π⋅(radius))⋅((radius)+(radius)2+(height)2)
Substitute the values of the length r=30 and height h=72 into the formula. Pi π is approximately equal to 3.14.
(π⋅30)(30+(30)2+(72)2)
Move 30 to the left of π.
30⋅π(30+(30)2+(72)2)
Simplify each term.
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Raise 30 to the power of 2.
30π(30+900+(72)2)
Raise 72 to the power of 2.
30π(30+900+5184)
Add 900 and 5184.
30π(30+6084)
Rewrite 6084 as 782.
30π(30+782)
Pull terms out from under the radical, assuming positive real numbers.
30π(30+78)
30π(30+78)
Simplify the expression.
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Add 30 and 78.
30π⋅108
Multiply 108 by 30.
3240π
3240π
The result can be shown in multiple forms.
Exact Form:
3240π
Decimal Form:
10178.76019763…
Find the Surface Area cone (72)(30)

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