March 20, 2017
Finding Surface Area of a Cone
A cone is a 3-Dimensional figure with 1 __________________
____________ and 1 ______________.
Just like with a cylinder, we find the area of each part, and add
them together.
Area of the curved surface: We use the
slant height,
The slant height is then multiplied by the
radius of the circle and ∏
Area:
Area of circle: ∏ r 2
S.A of a cone:
March 20, 2017
Finding the Surface Area of a Sphere
Because a sphere is so different from a cylinder or cone, we
cannot create a net of the figure.
A sphere is: the set of all pints in space that are the same
distance from _________________________________.
S.A. of a sphere:
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