File:Tangente cercle.svg

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Original file(SVG file, nominally 328 × 414 pixels, file size: 13 KB)

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Description
English: How to construct a tangente to a circle (C) at a point A with compasses :
  1. 1 Draw a line from center O to A and besides
  2. 2 Using A as center, draw a circle from O to find B
  3. 3 Using O as center, draw a half circle from B
  4. 4 Using B as center, draw a half circle from O, to get C and D
  5. 5 Draw the tangente to the circle (C) at the point A from C to D
Français : Comment construire une tangente à un cercle (C) au point A, avec un compas :
  1. 1 Dessiner une ligne depuis le centre O jusqu'à A et au-delà
  2. 2 En prenant A comme centre, tracer un cercle depuis O pour trouver B
  3. 3 En prenant O comme centre, tracer un demi-cercle à partir de B
  4. 4 En prenant B comme centre, tracer un demi-cercle à partir de O, pour déterminer C et D
  5. 5 tracer la droite passant par C et D, tangente au cercle (C) au point A.
Date
Source Own work
Author Frédéric MICHEL

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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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Date/TimeThumbnailDimensionsUserComment
current12:41, 12 August 2009Thumbnail for version as of 12:41, 12 August 2009328 × 414 (13 KB)-Strogoff- (talk | contribs)Change of place for (C)
12:39, 12 August 2009Thumbnail for version as of 12:39, 12 August 2009328 × 414 (13 KB)-Strogoff- (talk | contribs){{Information |Description={{en|1=How to construct a tangente to a circle (C) at a point A with compasses : #1 Draw a line from center O to A and besides #2 Using A as center, draw a circle from O to find B #3 Using O as center, draw a half circle from B

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