# Un sommet ---- ## A vertex (pl. vertices) --- # Une droite, un segment, une demi-droite ---- ## A (straight) line, a line segment, a ray --- # Trace une segment $[AB]$ de longueur 8 cm ---- ## Draw a line segment $\overline{AB}$ of length 8 cm --- # Rejoindre les extrémités de ces deux segments pour obtenir un segment parallèle au diamètre ---- ## Join the endpoints of these two segments to get a line segment parallel to the diameter --- # Construis le point J, milieu du segment $[BD]$ ---- ## Build the midpoint $J$ of segment $BD$ --- # Construis le point $E'$ tel que $K$ soit aussi le milieu du segment $\left[AE'\right]$ ---- ## Build the point $E'$ such that $K$ is also the midpoint of $AE'$ --- # Angles' notations ---- ## In French, $\widehat{ABC}$ and in English, $\angle ABC$ --- # $AC\perp BC$ ---- ## AC and BC are perpendicular /pɜːpənˈdɪkjələ[r]/ --- # Les coordonnées d'un point ---- ## The coordinates /kəʊˈɔːdɪneɪts/ of a point --- # L'abscisse d'un point ---- ## The $x$-coordinate (or the abscissa /æbˈsɪsə/) of a point --- # L'ordonnée d'un point ---- ## The $y$-coordinate (or the ordinate /ˈɔːdɪnət/) of a point --- # La droite coupe le cercle en deux points ---- ## The line intersects the circle at two points --- # Le segment $[QR]$ a pour longueur 12 ---- ## The line segment $\overline{QR}$ has length 12 --- # A, B et C sont des points alignés dans le plan ---- ## A, B and C are collinear /kɒlˈɪniər/ points in the plane --- # A coordinate system that specifies each point uniquely in a plane by a set of numerical coordinates, which are the signed ---- ## A Cartesian /kɑːˈtiziən/ coordinate system --- # An ellipse /iˈlɪps/ is defined as follows ---- ## For two given points, the foci /ˈfəʊsaɪ/ (or focuses), an ellipse is the locus of points such that the sum of the distances to each focus is constant --- # Un angle plat ---- ## A straight angle --- # Un angle aigu ---- ## An acute /əˈkjuːt/ angle --- # un angle obtus ---- ## An obtuse /əbˈtjuːs/ angle --- # un angle plat ---- ## A reflex /ˈriːfleks/ angle --- # They have the same measurement /ˈmeʒəmənt/ ---- ## Two angles are congruent /ˈkɒŋɡruənt/ --- # Angles opposés par le sommet ---- ## Vertical angles are a pair of opposite angles formed by two intersecting lines --- # The perimeter /pəˈrɪmɪtə[r]/ of the circle. ---- ## The circumference /səˈkʌmfərəns/ of a circle --- # La figure n'est pas dessinée avec les bonnes dimensions ---- ## The geometric figure is not drawn accurately /ˈækjərətli/ (We often see/write, Diagram not drawn to scale or simply, Diagram not to scale) --- # Une figure géométrique ---- ## A geometric /dʒiːəˈmetrɪk/ figure/shape --- # Un axe de symétrie ---- ## A line (or an axis /ˈæksɪs/) of symmetry /ˈsɪmətri/ --- # Ces angles sont supplémentaires ---- ## These angles are supplementary /sʌplɪˈmentri/ --- # Ces angles sont complémentaires ---- ## These angles are complementary /kɒmplɪˈmentri/ --- # A straight line between the centre of a circle and any point on its outer edge; the length of this line ---- ## A radius /ˈreɪdiəs/ of a circle --- # Une spirale ---- ## A spiral /ˈspaɪrəl/ --- # Quelques points éparpillés ---- ## A few stray points --- # Une ligne continue/un chemin continu ---- ## A continuous stroke --- # Un polyèdre ---- ## A polyhedron /pɒliˈhiːdrən/ (plural polyhedra /pɒliˈhiːdrə/) --- # An arrangement of shapes fitted closely together with no spaces in between, especially in a repeated pattern ---- ## A tesselation /tesəˈleɪʃn/ = a tiling --- # A pattern made by repeating a regular polygon ---- ## A regular /ˈreɡjələ[r]/ tesselation --- # Un pentagone ---- ## A pentagon /ˈpentəɡən/ --- # Un hexagone ---- ## A hexagon /ˈheksəɡən/ --- # Un decagone ---- ## A decagon /ˈdekəɡən/ --- # Un dodecagone ---- ## A dodecagon /dəʊˈdekəɡən/ <style> .slides {background-image:url("https://raw.githubusercontent.com/tremulotmaths/latex/master/von_koch_transparent.png");} .slides h1 {padding:2em; font-family:Arial; background-color:#133E29; opacity: 0.9;color:white; font-size:1em!important;} .slides h2 {background:#131750 ; opacity: 0.9;padding : 2em 0.2em; color:white; font-size:1em!important;} .slides h4 {margin-bottom:1.5em} </style>