| Tool: Annulus, definition and properties - Math Open Reference |
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| Go to: | http://www.mathopenref.com/annulus.html (opens a new window) | ||
| Description: | A web page and interactive applet show that an annulus is a flat (planar) ring, and can be thought of as a disk with a hole punched out of it. Applet can be enlarged to full screen size for use with a classroom projector. After use in the classroom, student can access it again from any web browser at home or in the library with no login required. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com. |
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| Technology Type: | Java Applet | ||
| Author: | John Page | ||
| Language: | English | ||
| Cost: | Does not require payment for use | ||
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| Tool: | Area of an Annulus - Math Open Reference | ||
| Courses: | Geometry | Circles | |
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