File:Steradian cone and cap.svg

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Description Diagram showing a section through the centre of a cone (1) subtending a solid angle of 1 steradian in a sphere of radius r, along with the spherical "cap" (2). The fact that the external surface of the cap has an area of r2 is shown. Note that this applies only if the solid angle of the cone is exactly 1 steradian.
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This W3C-unspecified vector image was created with Inkscape .
Author Inductiveload
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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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30 September 2007

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current04:07, 30 September 2007Thumbnail for version as of 04:07, 30 September 2007400 × 350 (28 KB)wikimediacommons>Inductiveload{{Information |Description=Diagram showing a section through the centre of a cone (1) subtending a solid angle of 1 w:steradian in a sphere of radius ''r'', along with the spherical "cap" (2). The fact that the external surface of the cap has an area

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