Volledige samevatting van die konteks van Meetkunde Graad 12 Wiskunde op hoërvlak (skoon wiskunde). Hierdie dokument voldoen aan die vereistes soos uiteengesit in die SAGS deur IEB en DBE. Behels die hele jaar se werk rakende Meetkunde , is goeie voorbereiding vir VRAESTEL 2.
, 2D meetkunde
Vierhoeke Som van binnehoeke = 360°
Vierkant
[Spesiale soort REGHOEK en RUIT]
& Al die hoeke is 90°
& Al die sye is ewe lank
& 2 teenoorstaande sye is parallel
& Hoeklyne is ewe lank en halveer die hoeke (45°)
& Hoeklyne sny mekaar loodreg 90°
Reghoek
[Reghoeke en ruite is spesiale vorme van PARALLELOGRAMME]
& Al die hoeke is 90°
& 2 paar teenoorstaande sye is parallel en ewe lank
& Hoeklyne is ewelank en halveer mekaar
Ruit
,Parallelogram (parm)
& 2 paar teenoorstaande sye is parallel en ewe lank
& 2 paar teenoorstaande hoeke is ewe groot
& Hoeklyne halveer mekaar
& Hoeklyne halveer die oppervlak van die parallelogram
trapesium
& Een paar teenoorstaande sye is ewewydig / parallel
vlieër
& 2 paar aanliggende sye is gelyk
& Hoeklyne sny mekaar by 90°
& Hoeklyne halveer die hoeke
& 2 driehoeke is gelyk (aanliggend)
, Driehoeke Som van binnehoeke = 180°
Gelyksydige driehoek
& Al die sye is ewe lank
& Al die hoeke is ewe groot (60°)
Gelykbenige driehoek
& 2 sye is ewe lank
& Hoeke teenoor gelyke sye is ewe groot
reghoekige driehoek
& Een hoek is ‘n regte hoek (90°)
& Die sy teenoor die regtehoek is die skuinssy
Eienskappe van △’e
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