Video: Puas yog diagonals ntawm parallelogram sib npaug?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum a parallelogram muab faib ua ob daim duab peb sab peb tau pom tias lub kaum sab xis hla ntawm sab (ntawm no kab pheeb ces kaum ) yog sib npaug . Qhov no ua pov thawj tias cov kaum sab nraud ntawm a parallelogram kuj yog sib npaug . Cov kab pheeb ces kaum ntawm a parallelogram tsis yog ntawm sib npaug ntev.
Nyob rau hauv no hais txog, uas parallelogram muaj sib npaug diagonals?
Hauv ib parallelogram , opposite sab yog sib npaug , opposite angles yog sib npaug thiab kab pheeb ces kaum sib sib. Hauv ib rhombus diagonals sib tshuam ntawm txoj cai kaum. Hauv ib daim duab plaub kab pheeb ces kaum yog sib npaug.
Tom qab ntawd, lo lus nug yog, puas yog diagonals ntawm rhombus sib npaug? Cov kab pheeb ces kaum ntawm a rhombus sib sib. Qhov no txhais tau hais tias lawv txiav ib leeg ib nrab. Yog li ntawd, kab pheeb ces kaum ua sib npaug yog ib rooj plaub tshwj xeeb thaum txhua sab ntawm lub rhombus yog sib npaug i.e yog square. Txwv tsis pub.
Tsuas yog li ntawd, nyob rau hauv uas quadrilateral diagonals sib npaug?
Ib qho xwm txheej sib npaug yog tias cov sab nraud yog sib npaug (ib qho square yog parallelogram), uas yog kab pheeb ces kaum perpendicularly bisect ib leeg, thiab yog ntawm sib npaug ntev. A quadrilateral yog ib lub square yog thiab tsuas yog tias nws yog ob qho tib si rhombus thiab ib daim duab plaub (plaub sib npaug sab thiab plaub sib npaug cov ces kaum).
Puas yog diagonals sib npaug hauv trapezium?
Diagonals yog sib npaug tsuas yog nyob rau hauv cov ntaub ntawv tshwj xeeb ntawm trapezium hu ua trapezoid (los yog isosceles trapezium ). Nws yog ib tug yam ntxwv khoom ntawm trapezoid , uas kab pheeb ces kaum yog sib npaug.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Puas yog Goode's interrupted Homolosine projection ib qho kev pom zoo lossis sib npaug ntawm thaj tsam sib npaug?
Qhov cuam tshuam Goode Homolosine qhov projection (Goode's) yog qhov cuam tshuam, pseudocylindrical, thaj tsam sib npaug, sib xyaw daim ntawv qhia kev kwv yees uas tuaj yeem nthuav tawm tag nrho lub ntiaj teb ntawm ib daim ntawv qhia. Cov av loj thoob ntiaj teb tau nthuav tawm nrog lawv cov cheeb tsam kom raug, nrog kev cuam tshuam tsawg, thiab kev cuam tshuam tsawg kawg nkaus
Puas yog txhua qhov sib npaug sib npaug sib npaug?
Thawj qhov sib npaug sib npaug yog qhov tseeb yog tias nws muaj kev txuag kom muaj nuj nqis. Piv txwv li, qhov sib npaug sib cais yeej ib txwm muaj tseeb, txij li lub ntsiab lus lawv yog ntawm daim ntawv: M(y) + N(t) = 0, yog li ϕ(t, y) = A(y) + B(t) yog a khaws cia kom muaj nuj nqis
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no