Circle (EntityTopic, 15)
From Hi.gher. Space
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== Use == | == Use == | ||
Circular faces are found in these trishapes on FGwiki: | Circular faces are found in these trishapes on FGwiki: | ||
| - | *[[Cylinder]] (or [[Frustum]]) (2×, | + | *[[Cylinder]] (or [[Frustum]]) (2×, 67%) |
*[[Cone]] (1×, 50%) | *[[Cone]] (1×, 50%) | ||
Revision as of 11:30, 22 September 2007
Template:Shape A circle refers to the surface of a perfectly symmetrical planar object.
Equations
- Variables:
r ⇒ radius of circle
- All points (x, y) that lie on the surface of a circle will satisfy the following equation:
x2 + y2 = r2
- The hypervolumes of a circle are given by:
total edge length = 2πr
area = πr2
- The linear cross-sections (n) of a circle are:
[!x,!y] ⇒ line of length (rcos(πn/2))
Use
Circular faces are found in these trishapes on FGwiki:
| Notable Dishapes | |
| Flat: | triangle • square • pentagon • hexagon • octagon • decagon |
| Curved: | circle |
| 3. Diamond | 4. (xy) Circle | 5. [xyz] Cube |
| List of bracketopes | ||
