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Nurgad

Kordamine

TermDefinition
Tippnurgad kahe sirge lõikumisel tekkivad võrdsed nurgad
Kõrvunurgade summa on 180°
Kõrvunurgad kaks nurka, millel on üks haar ühine ja mille teised haarad moodustavad sirge.
Lõikuvad sirged Sirged millel on üks ühine punkt
Ristuvad sirged kaks lõikuvat sirget, mis lõikumisel moodustavad täisnurga.
Paralleelsed sirged on sirged, mis asuvad samal tasandil ja ei lõiku
Sirgnurk Nurk on 180°
Nürinurk Nurk on > 90°
Teravnurk Nurk on < 90°
Täisnurk Nurk on 90°
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