Video: Dab tsi yog Apothem hauv Geometry?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov apothem (qee zaum abbreviated li apo) ntawm ib tug tsis tu ncua polygon yog ib txoj kab ntawm qhov chaw mus rau nruab nrab ntawm ib qho ntawm nws sab. Sib npaug, nws yog kab kos los ntawm qhov nruab nrab ntawm lub polygon uas yog perpendicular mus rau ib qho ntawm nws sab. Lo lus " apothem " kuj tuaj yeem xa mus rau qhov ntev ntawm cov kab ntawd.
Hais txog qhov no, Apothem txhais li cas hauv geometry?
Apothem . ntau Qhov kev ncua deb ntawm qhov nruab nrab ntawm ib qho polygon tsis tu ncua mus rau nruab nrab ntawm ib sab. (Rau ib ncig nws yog qhov kev ncua deb ntawm qhov chaw mus rau qhov nruab nrab ntawm ib chord.) Regular Polygons - Properties.
Kuj Paub, Dab tsi yog Apothem ntawm lub pentagon tsis tu ncua? Cov apothem yog kab los ntawm qhov nruab nrab ntawm lub pentagon mus rau ib sab, sib tshuam sab ntawm lub kaum sab xis ntawm 90º. Tsis txhob confuse cov apothem nrog lub vojvoog, uas kov lub ces kaum (vertex) es tsis txhob ntawm qhov nruab nrab.
Yog li ntawd, yuav ua li cas koj thiaj nrhiav tau lub Apothem ntawm ib tug tsis tu ncua polygon?
Peb kuj tuaj yeem siv thaj chaw qauv rau nrhiav lub apothem yog tias peb paub ob qho tib si cheeb tsam thiab ib puag ncig ntawm a polygon . Qhov no yog vim peb tuaj yeem daws rau ib qho hauv qauv , A = (1/2)aP, los ntawm kev muab ob sab los ntawm 2 thiab faib los ntawm P kom tau 2A / P = a. Ntawm no, cov apothem muaj qhov ntev ntawm 4.817 units.
Yuav ua li cas rau koj nrhiav thaj tsam ntawm daim duab peb sab?
Rau nrhiav tus cheeb tsam ntawm a daim duab peb sab , muab lub hauv paus los ntawm qhov siab, thiab muab faib los ntawm 2. Kev faib los ntawm 2 los ntawm qhov tseeb tias ib qho parallelogram tuaj yeem muab faib ua 2 daim duab peb sab . Piv txwv li, nyob rau hauv daim duab mus rau sab laug, lub cheeb tsam ntawm txhua tus daim duab peb sab yog sib npaug rau ib nrab ntawm cheeb tsam ntawm parallelogram.
Pom zoo:
Dab tsi yog txoj kab ntawm kev xav hauv geometry?
Kab ntawm kev xav. • ib txoj kab nruab nrab ntawm ib yam dab tsi, hu ua daim duab ua ntej, thiab nws daim iav tsom iav
Dab tsi yog cov duab zoo hauv geometry?
Cov duab khoom yog cov duab peb sab uas muaj qhov ntev, dav thiab qhov siab. Saib qee qhov piv txwv ntawm cov duab peb sab hauv qab no. Lub prism yog ib lub polyhedron nrog raws nraim ob lub ntsej muag uas yog congruent thiab parallel. Cov ntsej muag no hu ua lub hauv paus. Lwm lub ntsej muag hu ua lateral faces
Dab tsi yog rotational symmetry hauv geometry?
Rotational Symmetry. Ib daim duab muaj Rotational Symmetry thaum nws tseem zoo li qub tom qab qee qhov kev sib hloov (tsawg dua ib qho tig tag nrho)
Dab tsi yog qhov txawv ntawm Preimage thiab duab hauv geometry?
Daim duab tshiab tsim los ntawm kev hloov pauv yog hu ua daim duab. Thawj daim duab hu ua preimage. Kev txhais lus yog ib qho kev hloov pauv uas txav txhua qhov taw tes hauv daim duab tib qhov deb ntawm tib txoj kev
Dab tsi yog qhov pov thawj ncaj qha hauv geometry?
Daim ntawv pov thawj feem ntau hauv geometry yog cov pov thawj ncaj qha. Hauv kev ua pov thawj ncaj qha, qhov xaus rau kev ua pov thawj tau pom tias muaj tseeb ncaj qha raws li qhov tshwm sim ntawm lwm qhov xwm txheej ntawm qhov xwm txheej. Yog tias cov lus qhia muaj tseeb yog qhov tseeb, uas peb paub tias yog, ces q, nqe lus tom ntej hauv cov ntaub ntawv pov thawj, kuj yuav tsum muaj tseeb