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Paralelism in spatiu

Matematica11C.X

intrebariraspunsuri
Pozitiile relatieve ale dreptelor in spatiu sunt: Drepte paralele Drepte congruente Drepte incrucisate
Doua drepte se numesc congruente daca: Au un punct comun.
Doua drepte se numesc incrucisate daca: Una din drepte apartine unui plan,iar cealalta intersecteaza acest plan intr−un punct arbitrar, ce nu apartine primei drepte.
Planele ce nu au puncte comune se numesc..... Plane paralele.
Doua drepte d1 ,si d2 se numesc paralele daca: Sunt coplanare ,si nu au nici un punct in comun.
O dreapta d si un plan se numesc paralele daca: Nu au nici un punct in comun.
Daca unghiurile interne alterne au aceeasi marime atunci: Dreptele sunt paralele.
Daca suma unghiurilor interne de aceeasi parte a secantei este egala cu 180° atunci: Dreptele sunt paralele.
Dreptele mai sunt paralele atunci camd : Unghiurile corespondente sunt egale .
Doua plane a si B se numesc paralele daca: Ele nu au nici un punct in comun.
Created by: 1584953401668088
 

 



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