## measuring 3 dimensional figures

##### Created by:

dorothyzw  on June 17, 2010

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# measuring 3 dimensional figures

 surface area of a three-dimensional figurethe sum of the areas of its faces.
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#### Definitions

surface area of a three-dimensional figure the sum of the areas of its faces.
volume of a prism v=Bh ( where B is the area of the base and h is the height.
*three-dimensional
* expressed in cubic units)
volume of a pyramid V=1/3Bh ( where B is the area of the base and h is the height.)
surface area of a cylinder A=2ℵr²+2ℵrh ( where r is the radius of the circular bases and h is the height.)
surface area of a cone A=ℵr²+2ℵrl (, where r is the radius of the base and l is the slant height.)
surface area of a sphere A=4ℵr² (, where r is the radius of the sphere.)
volume of a cylinder V=ℵr²h (, where r is the radius of a circular base and h is the height.)
volume of a cone V=1/3 ℵr²h (where r is the radius of the circular base and h is the height.)
volume of a sphere V=4/3ℵr³ ( where r is the radius of the sphere.)

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