Video: Qhov piv txwv duab plaub yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub ntsiab txhais ntawm a duab plaub yog plaub-sidedfigure lossis duab nrog plaub txoj cai kaum uas tsis yog square. Ib piv txwv ntawm a duab plaub yog cov duab ntawm ib daim duab 8x10.
Hais txog qhov no, ob qho piv txwv ntawm ib daim duab plaub yog dab tsi?
Daim duab plaub . Lub 4-sided tiaj tus duab nrog straightsides qhov twg tag nrho cov sab hauv yog txoj cai kaum (90 °). Tsis tas li ntawd sab nraud yog parallel thiab sib npaug ntev. Piv txwv : Asquare yog ib hom tshwj xeeb ntawm duab plaub.
Tsis tas li ntawd, qhov piv txwv ntawm square yog dab tsi? A square yog kaw, ob-dimensional zoo nrog 4 sib npaug sab. A square yog quadrilateral. Peb tuaj yeem pom qhov zoo li ib square nyob rau hauv ib lub rooj sib tham ua si los yog chess board, lub phab ntsa thiab hauv ib lub khob cij, nyob ib ncig ntawm peb. Properties ntawm a Square : A square muaj 4 sab thiab 4vertices.
Ib yam li ntawd, tib neeg nug, koj txhais li cas ntawm daim duab plaub?
Hauv Euclidean dav hlau geometry, a duab plaub yog aquadrilateral nrog plaub txoj cai kaum. Nws ua tau kuj txhais tau tias yog ib qho quadrilateral equiangular, txij li equiangular txhais tau tias tias tag nrho nws cov ces kaum yog sib npaug (360 ° / 4 = 90 °). Nws ua tau kuj txhais tau tias yog ib qho parallelogram uas muaj ib txoj cai.
Qhov ntsuas ntawm ib daim duab plaub yog dab tsi?
Lub kaum sab xis ntawm a duab plaub tag nrho cov congruent (qhov loj me thiab ntsuas .) Nco ntsoov tias lub kaum sab xis 90 degree hu ua "lub kaum sab xis." Yog li ntawd, a duab plaub muaj plaub txoj cai.
Pom zoo:
Dab tsi yog qhov piv ntawm ib daim duab plaub zoo meej?
Nyob rau hauv geometry, ib tug golden duab plaub yog ib tug uas nws sab lengths nyob rau hauv lub golden piv (kwv yees li 1: 1.618)
Dab tsi yog qhov txawv ntawm lub xeev daim duab kos duab thiab daim duab ua haujlwm?
Lub xeev daim duab qauv yog siv los qhia qhov sib lawv liag ntawm lub xeev uas ib yam khoom mus dhau, qhov ua rau kev hloov ntawm ib lub xeev mus rau lwm qhov thiab qhov kev txiav txim uas tshwm sim los ntawm lub xeev hloov. Daim duab ua haujlwm yog ntws ntawm kev ua haujlwm yam tsis muaj qhov tshwm sim (kev tshwm sim) mechanism, lub xeev tshuab yog suav nrog lub xeev triggered
Qhov twg ntawm cov plaub hau plaub hau yog ib txwm plaub hau plaub hau?
square Tsis tas li ntawd nug, qhov ntsuas ntawm ib lub quadrilateral tsis tu ncua yog dab tsi? Yog, sab hauv lub kaum sab xis ntawm txhua lub ces kaum ntawm ib lub quadrilateral tsis tu ncua yog txhua 90 degrees (360 degrees / 4 fab).
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm
Dab tsi yog qhov txawv ntawm microevolution thiab macroevolution Dab tsi yog qee qhov piv txwv ntawm txhua tus?
Microevolution vs. Macroevolution. Piv txwv ntawm cov kev hloov microevolutionary no yuav suav nrog kev hloov ntawm hom xim lossis loj. Macroevolution, piv txwv li, yog siv los hais txog kev hloov pauv ntawm cov kab mob uas tseem ceeb txaus uas, dhau sijhawm, cov kab mob tshiab yuav raug suav tias yog hom tshiab nkaus xwb