Video: Nws txhais li cas rau ntu kom sib haum?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov seem tsuas yog kab ntu uas sib npaug ntawm qhov ntev. Congruent txhais tau tias sib npaug. Kev sib haum xeeb kab ntu feem ntau yog qhia los ntawm kev kos tib tus nqi ntawm cov kab me me hauv nruab nrab ntawm cov ntu , perpendicular rau lub ntu . Peb qhia ib kab ntu los ntawm kos ib kab hla nws ob qhov kawg.
Ua kom pom qhov no, nws txhais li cas rau ntu kom sib haum Nws txhais li cas rau cov ces kaum kom sib haum?
Kev sib haum xeeb Kab Ntu Kab ntu yog kev sib haum xeeb yog tias lawv muaj qhov ntev. Txawm li cas los xij, lawv yuav tsum tsis txhob sib npaug. Lawv tuaj yeem nyob ntawm txhua lub kaum sab xis lossis kev taw qhia ntawm lub dav hlau. Hauv daim duab saum toj no, muaj ob kev sib haum xeeb kab ntu . Nco ntsoov lawv tau pw ntawm qhov sib txawv lub kaum sab xis.
Ib tug kuj yuav nug, dab tsi yog lub cim rau tsis congruent? Cov lus ntawm cov cim hauv geometry:
| Cim | Cim npe | Lub ntsiab lus / txhais |
|---|---|---|
| ∥ | thaum uas tig mus | kab sib npaug |
| ≅ | sib tham | sib npaug ntawm cov duab geometric thiab qhov loj me |
| ~ | zoo sib xws | tib cov duab, tsis loj loj |
| Δ | daim duab peb sab | daim duab peb sab |
Xav txog qhov no, nws txhais li cas kom sib haum?
Lub adjective kev sib haum xeeb haum thaum ob daim duab zoo ib yam ntawm cov duab thiab loj. Yog koj pw ob kev sib haum xeeb daim duab peb sab ntawm ib leeg, lawv yuav phim raws nraim. Kev sib haum xeeb los ntawm Latin verb congruere "los ua ke, sib haum nrog." Piv txwv li, lo lus piav txog ib yam dab tsi uas zoo sib xws hauv tus cwj pwm lossis hom.
Puas yog cov kab sib txuas sib txuas?
Yog ob kab sib npaug yog txiav los ntawm ib tug transversal, cov ces kaum sib raug kev sib haum xeeb . Yog ob kab yog txiav los ntawm ib tug transversal thiab cov ces kaum sib raug kev sib haum xeeb , cov kab yog parallel . Sab hauv Angles ntawm Tib Sab ntawm Transversal: Lub npe yog ib qho kev piav qhia ntawm "qhov chaw" ntawm cov ces kaum no.
Pom zoo:
Nws txhais li cas yog tias qhov sib npaug tsis sib haum?
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