# Geometry 3-Dimensional Figures and Properties

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 Author: MoonRacer ID: 157766 Filename: Geometry 3-Dimensional Figures and Properties Updated: 2012-06-08 00:10:07 Tags: Geometry Math Dimensional Volume Surface Area Polyhedrons Objects Properties Folders: Description: Review of 3-D objects and their properties for the Geometry Regents Exam. Have paper to draw pictures and write down formulas. Show Answers:

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1. What is a net?
A two dimensional drawing of a 3-D figure where the shapes are unopened like a box being flattened.
2. What is the lateral area?
The area of the lateral sides, the part that connects the two bases, or on base in some cases to a certain point.
3. What is the surface area of a right prism (triangular, rectangular, etc.)
where B is the area of the base and P is the perimeter.
4. What is the surface area of a cylinder?
5. What is the surface area of a cone?
6. What is the surface area of a regular pyramid?
where B is the area of the base, P is the perimeter, and l is the slant height.
7. What is the volume of a cube?
8. How do you find the volume of a strange shaped object?
You break it into familiar shapes that you know how to solve and then add their volumes up.
9. What is the general rule for formulas for area?
• V=Bh if it is flat topped.
• V=1/3Bh if it is pointy.
10. What is the colume of a prism?
11. What is the volume of a cylinder?
12. What is the volume of a pyramid?
13. What is the volume of a cone?
14. What is a hemisphere?
A half of a sphere.
15. When doing surface area or weird things, what must you remember?
To remove the doubling parts, andmake sure you remove what won't be seen. Only what you need to wrap a present.
16. What is the ration of the volumes of similar 3-D shapes?
a3 : b3 where a and b are corresponding lengths of the solid

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