File:FS CRCC2(2) dia.png
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Captions
Summary edit
DescriptionFS CRCC2(2) dia.png |
English: Circle containing the largest right isosceles triangle, the next largest circle, the second next largest circle and the second next largest circle
Deutsch: Kreis, der das größte gleichschenklige rechte Dreieck, den nächstgrößten Kreis, den zweitgrößten Kries und den folgenden zweitgrößten Kreis enthält |
Date | |
Source | Own work |
Author | Hans G. Oberlack |
Elements edit
Base is the circle of given radius around point
Inscribed is the largest possible right triangle with side length .
Added is the largest circle around point
Added is the second largest circle around point
Added is the second largest circle around point
General case edit
Segments in the general case edit
0) The radius of the base circle
1) Side of the triangle , see CRC dia
2) The radius of the inscribed circle
3) The radius of the second inscribed circle ,see Calculation 1
4) The radius of the next second inscribed circle , for symmetry reasons
Perimeters in the general case edit
0) Perimeter of base circle
1) Perimeter of the triangle
2) Perimeter of inscribed circle
3) Perimeter of second inscribed circle
4) Perimeter of next second inscribed circle
Areas in the general case edit
0) Area of the base circle
1) Area of the inscribed triangle
2) Area of the inscribed circle
3) Area of the second inscribed circle
4) Area of the next second largest inscribed circle
Covered surface of the base shape
Centroids in the general case edit
Centroids as graphically displayed and orientated edit
The centroid positions of the following shapes will be expressed orientated so that the first shape n with will be of type with . This means that the graphical representation will not correspond to the mathematical expression.
0) Orientated centroid position of the base circle:
1) Orientated centroid position of the inscribed triangle:
2) Orientated centroid position of the inscribed circle:
3) Orientated centroid position of the inscribed circle:
4) Orientated centroid position of the next inscribed circle:
Normalised case edit
In the normalised case the area of the base is set to 1.
Segments in the normalised case edit
0) Radius of the base circle
1) Side length of the inscribed triangle
2) Radius of the inscribed circle
3) Radius of the second inscribed circle
4) Radius of the next inscribed circle
Perimeters in the normalised case edit
0) Perimeter of base circle
1) Perimeter of the inscribed triangle
2) Perimeter of inscribed circle:
3) Perimeter of second inscribed circle
4) Perimeter of next inscribed circle
Areas in the normalised case edit
0) Area of the base circle
1) Area of the inscribed triangle
2) Area of the inscribed circle
3) Area of the second inscribed circle
3) Area of the next inscribed circle
Centroids in the normalised case edit
Centroids as graphically displayed and orientated edit
The centroid positions of the following shapes will be expressed orientated so that the first shape n with will be of type with . This means that the graphical representation will not correspond to the mathematical expression.
0) Orientated centroid position of the base circle:
1) Orientated centroid position of the inscribed triangle:
2) Orientated centroid position of the inscribed circle:
3) Orientated centroid position of the inscribed circle:
4) Orientated centroid position of the inscribed circle:
Calculations edit
Calculation 1 edit
(1) is perpendicular on since the circle around is tangent to
and is perpendicular on since the circle around is tangent to
and
(2) is perpendicular in since the circle around is tangent to the circle around with and
(3) is perpendicular in since the circle around is tangent to the circle around with and
(4)
, applying eqaution (1)
(5) , applying the Pythagorean theorem
, applying equation (1)
, applying equation (2)
, applying binomial theorem
(6) , applying the Pythagorean theorem
, applying equation (1)
, applying equation (5)
, applying equation (4)
, applying equation (3)
, applying binomial theorem
, applying binomial theorem
, deducting
, adding
, adding
, since
Calculation 2 edit
The centroid can be written as
, since
expressed as vectors
using vectors of known length
since is on the 45-degree axis
since is perpendicular to
since and
since
since
since
since
since
Calculation 3 edit
-->
Calculation 4 edit
Calculating in the orientated position:
, see calculation 1
, applying Pythagorean theoreme
, applying calculation 1
, applying calculation 1
, applying binomial formula
, eliminating
, since
, rearranging
, rearranging
, rearranging
, rearranging
Licensing edit
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 10:32, 15 December 2023 | 1,503 × 1,428 (98 KB) | Hans G. Oberlack (talk | contribs) | Uploaded own work with UploadWizard |
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Horizontal resolution | 129.92 dpc |
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Vertical resolution | 129.92 dpc |