Video: Dab tsi yog 4 daim ntawv pov thawj rau kev ya raws sab av loj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Plaub qhov piv txwv xws li: Mesosaurus, Cynognathus, Lystrosaurus, thiab Glossopteris.
Ib yam li ntawd, nws yog nug, dab tsi yog cov pov thawj rau kev sib tw sab av loj?
Cov ntaub ntawv pov thawj rau continental drift Wegener paub tias cov nroj tsuag fossil thiab tsiaj xws li mesosaurs, cov tsiaj reptiles dej tshiab pom tsuas yog South America thiab Africa thaum lub sijhawm Permian, tuaj yeem pom muaj ntau yam. teb chaws . Nws kuj tau sib tw pob zeb ntawm ob sab ntawm Dej Hiav Txwv Atlantic zoo li cov duab dhos ua si.
Ib sab saum toj no, dab tsi yog 2 daim pov thawj rau phaj tectonics? Muaj ntau yam pov thawj uas txhawb cov neeg thov tias phaj tectonics tso nyiaj rau (1) kev faib cov fossils ntawm txawv teb chaws, ( 2 ) qhov tshwm sim ntawm av qeeg, thiab (3) continental thiab dej hiav txwv pem teb nta xws li roob, volcanoes, faults, thiab trenches.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog 6 daim ntawv pov thawj rau txoj kev xav ntawm continental drift?
Cov tsiaj reptile Fossils- dinosaurs tsis tuaj yeem ua luam dej hla dej hiav txwv loj. Plant Fossils - tag nrho cov cheeb tsam no tau txuas nrog ib zaug thiab muaj huab cua zoo sib xws. Cov nroj tsuag kub muaj nyob hauv Arctic- tropical nroj tsuag tsis tuaj yeem loj hlob hauv huab cua txias.
Dab tsi yog qhov pov thawj thib 1 ntawm kev caij nkoj hauv av?
Alfred Wegener thawj zaug tau nthuav tawm nws qhov kev xav rau German Geological Society thaum Lub Ib Hlis 6, 1912. Nws qhov kev xav yog tias cov teb chaws tau tsim ib thaj av ib zaug, hu ua Pangaea, ua ntej tawg thiab ntws mus rau lawv qhov chaw tam sim no.
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?
Cov ntaub ntawv pov thawj uas siv cov duab ntawm lub dav hlau sib koom ua pov thawj geometric zog yog hu ua trigonometric
Koj tuaj yeem ua pov thawj li cas 2 daim duab peb sab zoo sib xws siv lub kaum sab xis sab SAS zoo sib xws postulate?
SAS Similarity Theorem hais tias yog ob sab hauv ib daim duab peb sab yog proportional rau ob sab hauv lwm daim duab peb sab thiab lub kaum sab xis nyob rau hauv ob qho tib si congruent, ces ob daim duab peb sab zoo ib yam. Ib qho kev hloov pauv zoo sib xws yog ib lossis ntau qhov kev hloov pauv tsis tu ncua ua raws li kev dilation
Koj ua pov thawj li cas ntawm cov ces kaum sab nrauv ntawm daim duab peb sab yog 360?
Lub kaum sab nrauv ntawm daim duab peb sab yog sib npaug rau qhov sib npaug ntawm cov kaum sab hauv sab nraud. Yog xav paub ntxiv txog qhov no saib Daim duab peb sab sab nraud lub kaum sab xis theorem. Yog tias lub kaum sib npaug raug coj los ntawm txhua qhov vertex, cov ces kaum sab nrauv ib txwm ntxiv rau 360 ° Qhov tseeb, qhov no muaj tseeb rau txhua qhov convex polygon, tsis yog daim duab peb sab
Dab tsi yog kev sib raug zoo ntawm sab nrauv thiab sab hauv lub kaum sab xis ntawm daim duab peb sab?
Cov kaum sab hauv yog hu ua Sab hauv cov ces kaum. Cov lej ntawm cov kaum sab hauv ntawm daim duab peb sab yog ib txwm 180 degrees. Lub kaum sab nrauv yog lub kaum sab xis ntawm ib sab ntawm ib qho duab, thiab ib txoj kab txuas ntxiv los ntawm sab tom ntej. Qhov sib npaug ntawm lub kaum sab nrauv thiab nws lub kaum sab hauv uas nyob ib sab kuj yog 180 degrees