Area Of a Pyramin
The area L of any regular
pyramid with a base that has perimeter P and with slant height l is equal to one-half the product of the perimeter and the
slant height.
Formula: L = .5Pl
Area of a Cylinder
For any right circular cylinder with radius
r and height h, the total area T is two times the area of the base plus the lateral area (2(PI)rh).
Formula: T = 2(PI)rh
+ 2(PI)r2
Cone Area Theorem
The total area T of a cone with
radius r and slant height l is equal to the area of the base plus PI times the product of the radius and the slant height.
Formula: T = (PI)rl + (PI)r2
Area of a Sphere
The area A of any sphere with radius r is equal
to 4(PI) times the square of the radius.
Area Formula: A = 4(PI)r2
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