Dab tsi yog parallel thiab perpendicular?
Dab tsi yog parallel thiab perpendicular?

Video: Dab tsi yog parallel thiab perpendicular?

Video: Dab tsi yog parallel thiab perpendicular?
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Anonim

Parallel kab yog cov kab hauv ib lub dav hlau uas ib txwm sib nrug deb. Parallel kab yeej tsis sib tshuam. Perpendicular kab yog cov kab uas hla ntawm txoj cai (90 degrees) lub kaum sab xis.

Ua raws li qhov no hauv kev xav, qhov txawv ntawm perpendicular thiab parallel yog dab tsi?

Ob kab hais tias yog thaum uas tig mus thaum lawv sib npaug ntawm ib leeg thiab yuav tsis cuam tshuam lossis kov. Hauv cov ntsiab lus yooj yim, txoj kab nqes ntawm ob thaum uas tig mus kab sib npaug. Txoj kab nqes ntawm perpendicular kab, ntawm qhov tod tes, yog qhov tsis zoo ntawm ib leeg lub ntsiab lus cov kab hla ib leeg ntawm lub kaum sab xis.

Tsis tas li ntawd, txoj kev twg yog perpendicular? Perpendicular kab tuaj yeem ntsib txhua yam kev taw qhia . Lawv tuaj yeem yog crossways, nce thiab nqis, lossis sab -rau- sab ntawm nplooj ntawv. Lawv tsis tas yuav tsum tau sawv ntsug ncaj nraim ntawm hauv qab lossis sab ntawm nplooj ntawv. Lawv tsuas yog yuav tsum yog 90 ° rau ib leeg.

Tib neeg kuj nug, dab tsi yog ib txoj kab perpendicular?

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.

Qhov piv txwv perpendicular yog dab tsi?

Perpendicular - Txhais nrog Piv txwv Ob kab sib txawv ntawm ib leeg ntawm 90 ° lossis lub kaum sab xis yog hu ua perpendicular kab. Piv txwv : AB is perpendicular rau XY vim AB thiab XY sib tshuam ntawm 90 °. Tsis- Piv txwv : Ob kab yog sib npaug thiab tsis sib tshuam.

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