Cov txheej txheem:
Video: Vim li cas qhov opposite sab ntawm parallelogram sib npaug?
2024 Tus sau: Taylor Roberts | [email protected]. Kawg hloov kho: 2023-12-16 00:29
Cov opposite kaum ntawm parallelogram yog sib npaug . Cov opposite sab ntawm ib daim duab plaub yog sib npaug . Diagonals ntawm a parallelogram sib cais.
Tsis tas li lo lus nug yog, puas yog ob sab ntawm lub parallelogram sib npaug?
Hauv Euclidean geometry, a parallelogram yog ib qho yooj yim (tsis-tus kheej-kev sib tshuam) quadrilateral nrog ob khub ntawm parallel sab . Cov rov qab los yog ntsib ob sab ntawm daim duab plaub yog ntawm sib npaug ntev thiab cov opposite kaum ntawm parallelogram yog ntawm sib npaug ntsuas
Tsis tas li ntawd, dab tsi yog cov ces kaum sib txawv ntawm cov duab sib dhos? A Parallelogram yog ib lub tiaj tus nrog rov qab sab parallel thiab sib npaug ntawm qhov ntev. Kaum "a" thiab "b" ntxiv txog 180 °, yog li lawv tau ntxiv lub kaum sab xis . CEEB TOOM: Squares, Rectangles thiab Rhombuses yog tag nrho Parallelograms !
Ua raws li qhov kev pom no, vim li cas cov sab nraud ntawm qhov sib npaug sib npaug?
THEOREM: Yog tias plaub fab plaub fab muaj kab pheeb ces kaum uas sib cais ib leeg, ces nws yog parallelogram . THEOREM: Yog hais tias lub quadrilateral muaj ib txheej ntawm ob sab uas yog ob leeg kev sib haum xeeb thiab thaum uas tig mus, ces nws yog a parallelogram . Txoj kev kawg no tuaj yeem txuag lub sijhawm thiab lub zog thaum ua haujlwm ua pov thawj!
Dab tsi yog 4 yam khoom ntawm parallelogram?
Parallelogram muaj cov khoom hauv qab no:
- Ob sab sib tw yog qhov sib thooj los ntawm kev txhais.
- Cov sab nraud yog congruent.
- Lub kaum ntse ntse sib txawv yog sib xws.
- Cov kaum sib law liag yog ntxiv.
- Cov diagonals sib sib zog nqus.
Pom zoo:
Puas yog daim duab peb sab sib npaug?
Ib qho parallelogram yog plaub-sided, ob-dimensional zoo nyob rau hauv uas opposite sab yog parallel thiab muaj sib npaug ntev. Daim duab peb sab yog ib daim duab ob sab nrog peb sab thiab peb lub kaum ntse ntse. Txhawm rau nrhiav thaj tsam ntawm daim duab peb sab, peb muab ib nrab ntawm nws lub hauv paus muab faib los ntawm nws qhov siab
Vim li cas ib daim duab sib npaug nrog ib lub kaum sab xis yog duab plaub?
Tom qab ntawd ABCD yog ib qho parallelogram vim nws cov kab pheeb ces kaum sib sib zog nqus. Lub xwmfab ntawm txhua kab pheeb ces kaum yog qhov sib npaug ntawm cov xwmfab ntawm ob sab uas nyob ib sab. Txij li cov sab nraud yog sib npaug ntawm qhov ntev, cov squares ntawm ob lub diagonals yog tib yam. Li no ABCD yog duab plaub, vim tias nws yog daim duab plaub nrog ib lub kaum sab xis
Qhov ntsuas kub li cas ntawm qhov ntsuas Celsius yog sib npaug rau ob zaug nws tus nqi thaum qhia rau Fahrenheit nplai?
Teb thiab Piav Qhia: Lub ntsiab lus uas kub hauv Fahrenheit yog qhov tseeb ob zaug hauv Celsius yog 320 ° Fahrenheit, uas yog sib npaug li 160 ° Celsius
Kuv yuav paub tau li cas yog tias kuv qhov sib npaug sib npaug xav tau hloov?
Cov cim qhia tias koj lub crankshaft harmonic balancer xav tau hloov pauv suav nrog: Lub cav nrov thiab koj hnov kev co tuaj ntawm koj lub cav. Txoj siv rubey yuav plam ua rau koj lub tsheb rov qab los yog tsis raug. Lub sijhawm tsheb tsis tuaj yeem nres. Lub tsheb yuav tsis pib hlo li
Thaum npaj tawm ntawm qhov chaw nres tsheb sib npaug koj yuav tsum?
Tsawg kawg yog ob txhais taw deb ntawm lub tsheb no (saib daim duab). Txheeb xyuas kom ntseeg tau tias txoj hauv kev tau qab koj, thiab hloov mus rau qhov rov qab. Saib ntawm koj lub xub pwg thiab rov qab qeeb thaum koj tig koj lub log mus rau ntawm txoj kev. Rov qab maj mam kom lub hauv ntej ntawm lub tsheb txawm nrog lub qhov rooj ntawm lub tsheb nyob ib sab ntawm koj