Video: Dab tsi yog perpendicular thiab intersecting kab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Parallel kab yog kab nyob rau hauv ib lub dav hlau uas ib txwm sib nrug deb. Perpendicular kab yog kab uas sib tshuam ntawm lub kaum sab xis (90 degrees).
Hauv qhov no, qhov sib txawv ntawm kab perpendicular thiab txoj kab sib tshuam yog dab tsi?
Kev sib tshuam kab qhia ib point hauv common, hu ua lawv qhov kev sib tshuam. Perpendicular kab yog kev sib tshuam kab uas yog nyob rau ntawm lub kaum sab xis rau ib leeg. Rau kab hauv x-y dav hlau, txhua qhov ntsug (x = tas li) kab yog perpendicular rau txhua kab rov tav (y = tas li) kab.
Ib yam li ntawd, lub ntsiab txhais ntawm kab perpendicular yog dab tsi? Hauv elementary geometry, cov cuab yeej ntawm kev ua perpendicular (perpendicularity) yog kev sib raug zoo ntawm ob kab uas sib ntsib ntawm lub kaum sab xis (90 degrees). Cov cuab yeej txuas mus rau lwm yam khoom siv geometric. A kab yog hais tias yog perpendicular rau lwm tus kab yog ob tug kab sib tshuam ntawm lub kaum sab xis.
Hauv qhov no, dab tsi yog cov kab sib tshuam uas tsis yog perpendicular?
Perpendicular kab yog kab uas sib tshuam ntawm lub kaum sab xis 90 degree, yog li ob qho tib si kev sib tshuam kab uas ua tsis sib tshuam ntawm 90 degrees (tseem hu ua cov ces kaum sib ntxiv) yog tsis perpendicular.
Ib qho piv txwv ntawm kab perpendicular yog dab tsi?
Perpendicular kab tshwm sim txhua lub sij hawm ob kab ntsib ntawm lub kaum sab xis 90 °, tseem hu ua lub kaum sab xis. Qee lub sij hawm koj yuav pom me ntsis square nyob rau hauv lub ces kaum ntawm lub kaum sab xis, qhia nws yog perpendicular . Muaj ntau piv txwv ntawm kab perpendicular nyob rau hauv lub neej txhua hnub, nrog rau ib tug football teb thiab tsheb ciav hlau lem.
Pom zoo:
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Dab tsi yog parallel thiab perpendicular kab?
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Dab tsi yog parallel intersecting thiab perpendicular kab?
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