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Video: Dab tsi yog Midsegment theorem ntawm lub trapezoid?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Trapezoid Midsegment Theorem . Cov daim duab peb sab midsegment theorem hais tias txoj kab txuas rau nruab nrab ntawm ob sab ntawm a daim duab peb sab, hu ua midsegment , yog thaum uas tig mus mus rau sab thib peb, thiab nws qhov ntev yog sib npaug rau ib nrab ntawm qhov ntev ntawm peb sab.
Ntawm no, yuav ua li cas koj nrhiav tau lub Midsegment ntawm ib tug trapezoid?
A trapezoid midsegment txuas lub midpoints ntawm ob congruent sab ntawm lub trapezoid , thiab yog nyob rau hauv parallel rau cov khub ntawm parallel sab. Qhov ntev ntawm cov midsegment yog tus lej ntawm ob lub hauv paus muab faib los ntawm 2. Nco ntsoov tias lub hauv paus ntawm a trapezoid yog ob qho tib si sab nraud.
Kuj Paub, koj siv Midsegment Theorem li cas? Daim duab peb sab Midsegment Theorem hais tias, yog tias peb txuas qhov nruab nrab ntawm ob sab ntawm ib daim duab peb sab nrog ib kab segment, ces kab segment txaus siab rau cov nram qab no ob yam khoom: Cov kab segment yuav parallel mus rau sab peb. Qhov ntev ntawm txoj kab ntu yuav yog ib nrab ntawm qhov ntev ntawm peb sab.
Kuj tseem paub yog, koj nrhiav Midsegment li cas?
Muab qhov yooj yim, nws faib ob sab ntawm daim duab peb sab sib npaug. Lub midpoint ntawm ib sab faib sab rau hauv ob qhov sib npaug. Raws li koj ua tau saib hauv daim duab hauv qab no, DE yog tus midsegment ntawm daim duab peb sab ABC. Point D faib ntu AB mus rau ob qhov sib npaug, thiab taw tes E faib ntu CB ua ob qhov sib npaug.
Yuav ua li cas koj ua pov thawj ib yam dab tsi yog ib tug trapezoid?
Ib txoj hauv kev los ua pov thawj tias quadrilateral yog ib qho isosceles trapezoid yog qhia:
- Lub quadrilateral muaj ob sab sib npaug.
- Lub hauv paus kaum sab xis yog congruent thiab lub hauv paus lub kaum sab xis yog congruent.
Pom zoo:
Lub luag haujlwm ntawm CDK yog dab tsi hauv lub cev ua haujlwm ntawm tes tshwj xeeb hauv lub voj voog ntawm tes?
Los ntawm phosphorylation, Cdks teeb liab lub xov tooj ntawm tes uas nws tau npaj kom dhau mus rau theem tom ntej ntawm lub voj voog ntawm tes. Raws li lawv lub npe qhia, Cyclin-Dependent Protein Kinases yog nyob ntawm cyclins, lwm chav kawm ntawm kev tswj hwm cov protein. Cyclins khi rau Cdks, ua kom cov Cdks rau phosphorylate lwm cov molecules
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog 2 qhov tseem ceeb ntawm lub voj voog ntawm tes thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
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Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Koj pom daim duab peb sab Midsegment Theorem li cas?
Daim duab peb sab Midsegment Theorem hais tias txoj kab ntu txuas rau nruab nrab ntawm ob sab ntawm daim duab peb sab yuav ua rau cov khoom nram qab no: Cov kab ntu yuav sib npaug mus rau sab thib peb. Qhov ntev ntawm kab ntu yuav yog ib nrab ntawm qhov ntev ntawm peb sab