Cov txheej txheem:
Video: Koj ua pov thawj li cas tias ob ntu yog 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. Kev sib haum xeeb txhais tias sib npaug. Kev sib haum xeeb kab ntu feem ntau yog qhia los ntawm kev kos tib tus nqi me me tic kab nyob nruab nrab ntawm cov ntu , perpendicular mus rau ntu . Peb qhia ib kab ntu los ntawm kos ib kab hla nws ob cov ntsiab lus kawg.
Kuj paub, ua li cas koj ua pov thawj ib yam dab tsi congruent?
Daim duab peb sab (peb-sided polygons) yog congruent yog tias lawv ua raws li tsib txoj cai hauv qab no:
- SSS: Tag nrho peb sab yog sib npaug.
- SAS: 2 sab thiab lawv lub kaum sab xis sib npaug.
- ASA: Ib khub ntawm cov ces kaum thiab lawv nrog sab yog sib npaug.
- AAS: 2 cov ces kaum sib thooj thiab lawv sab tsis suav nrog yog sib npaug.
Nws txhais li cas thaum ob ntu yog congruent? 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 cov ntsiab lus kawg.
Raws li txoj cai, koj ua pov thawj li cas tias ob kab yog tib qhov ntev?
Thawj yog yog cov ces kaum sib thooj, cov ces kaum uas nyob rau ntawm ib yam ces kaum ntawm txhua qhov kev sib tshuam, sib npaug, ces tus kab yog thaum uas tig mus. Qhov thib ob yog yog qhov hloov sab hauv cov ces kaum, cov ces kaum uas nyob rau sab nraud ntawm lub transversal thiab hauv qhov sib npaug kab , yog sib npaug, ces tus kab yog thaum uas tig mus.
Lub cim rau perpendicular yog dab tsi?
Ob kab uas sib tshuam thiab tsim cov kaum sab xis yog hu ua perpendicular kab. Cov cim ⊥ yog siv los qhia perpendicular kab. Hauv daim duab, kab l ⊥ kab m.
Pom zoo:
Koj ua pov thawj li cas cov kab yog sib npaug hauv cov ntawv pov thawj?
Thawj yog yog tias cov ces kaum sib thooj, cov ces kaum uas nyob rau tib lub ces kaum ntawm txhua qhov kev sib tshuam, sib npaug, ces cov kab sib npaug. Qhov thib ob yog yog tias qhov sib txawv sab hauv lub kaum sab xis, cov ces kaum uas nyob rau sab nraud ntawm lub transversal thiab sab hauv cov kab sib npaug, sib npaug, ces cov kab sib npaug
Dab tsi pov thawj siv cov duab ntawm lub dav hlau sib koom ua pov thawj cov khoom geometric?
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Koj tuaj yeem ua pov thawj li cas tias lub teeb yog ib qho particle?
Cov nyhuv photoelectric tshwm sim thaum lub zog siab photon (lub teeb particle) ntaus lub hlau nto thiab cov hluav taws xob tawm thaum lub photon ploj. Qhov no qhia tau hais tias lub teeb tuaj yeem ua ib qho thiab nthwv dej. Txhawm rau tsim qhov kev sim los qhia tias lub teeb yog ib qho, koj tuaj yeem xa mus rau Electron Ob Chav Slit Experiment
Koj ua pov thawj tias cov ces kaum sib npaug li cas?
Tom qab ntawd, peb ua pov thawj cov theorems uas muaj feem xyuam rau cov ces kaum: Vertically opposite ces kaum sib npaug. Hloov sab nrauv cov ces kaum sib npaug. Hloov sab hauv cov ces kaum sib npaug. Qhov sib npaug ntawm cov ces kaum sab hauv ntawm tib sab ntawm lub transversal yog 180 degrees