Video: Dab tsi yog ib nrab kab hauv geometry?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
ib nrab - kab (plural ib nrab - kab ) ( geometry ) liab; a kab ncua indefinitely nyob rau hauv ib qho kev taw qhia los ntawm ib tug taw tes.
Tib neeg kuj nug, qhov txhais ntawm ib nrab kab yog dab tsi?
Txhais ntawm ib nrab kab .:ib ncaj kab ncua los ntawm ib qho point indefinitely nyob rau hauv ib qho kev taw qhia nkaus xwb.
Ib yam li ntawd, qhov hluav taws xob hauv geometry yog dab tsi? Hauv geometry , a ray yog ib txoj kab nrog ib qho kawg (los yog taw tes ntawm lub hauv paus chiv keeb) uas txuas mus rau infinitely nyob rau hauv ib qho kev taw qhia.
Ib yam li ntawd, tib neeg nug, qhov txawv ntawm txoj kab hluav taws xob thiab ib nrab kab yog dab tsi?
Txhais: ray - lub union ntawm a ib nrab - kab thiab nws keeb kwm. Nws extends infinitely hauv ib qho kev taw qhia los ntawm ib qho chaw. *Note: Cov qhov sib txawv ntawm ib nrab - kab thiab rays yog tias rays muaj keeb kwm thiab ib nrab - kab tsis txhob.
Lub ntsiab lus ntawm concurrent kab yog dab tsi?
Ib txheej ntawm kab los yog nkhaus hais tias yog ua ke yog tias lawv tag nrho kev sib tshuam. tib lub ntsiab lus. Hauv daim duab hauv qab no, peb kab yog ua ke vim lawv txhua tus sib tshuam ntawm ib qho taw tes P. Qhov point P yog hu ua "point of concurrency". Yog li ntawd, txhua yam tsis sib xws kab yog ua ke.
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