Dab tsi yog cov khoom sib txawv hauv kev ua lej?
Dab tsi yog cov khoom sib txawv hauv kev ua lej?

Video: Dab tsi yog cov khoom sib txawv hauv kev ua lej?

Video: Dab tsi yog cov khoom sib txawv hauv kev ua lej?
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Dab tsi yog khov kho geometry? Khoom geometry muaj kev txhawj xeeb nrog peb-dimensional cov duab . Qee qhov piv txwv ntawm peb-dimensional cov duab yog cubes, rectangular cov khoom khib nyiab , prisms, cylinders, spheres, cones thiab pyramids. Peb yuav saib cov qauv ntim thiab cov qauv ntawm qhov chaw cov khoom khib nyiab.

Ib yam li ntawd ib tug yuav nug, dab tsi yog cov hom ntawm cov khoom siv?

Lawv yog: Rectangular prism - a daim duab uas muaj rau sab, hu ua ntsej muag, uas yog cov duab plaub. Kub - a daim duab uas muaj rau lub ntsej muag uas yog tag nrho cov squares ntawm tib qhov loj. Cone - ib daim duab uas muaj lub ntsej muag ncig ntawm ib kawg, hu ua lub hauv paus, thiab ib qho taw tes ntawm lwm qhov kawg qhov twg ob sab sib ntsib.

Ib yam li ntawd, muaj pes tsawg geometric solids muaj? Nyob ntawd muaj cuaj tsis tu ncua cov khoom khib nyiab : tsib Platonian, duab saum toj no, thiab plaub polyhedra piav los ntawm Kepler-Poinsot. Txhua lub ntsej muag, apex thiab lub kaum sab xis ntawm txhua qhov khov kho yog ib yam.

Ntxiv mus, dab tsi yog solids nyob rau hauv lej?

Khoom . ntau A peb qhov (3D) khoom. 3 qhov ntev yog hu ua dav, qhov tob thiab qhov siab. Piv txwv li spheres, cubes, pyramids thiab cylinders.

Dab tsi yog daim duab dav hlau hauv lej?

Cov duab dav hlau . Cov duab dav hlau yog tiaj ob-dimensional (2D) duab. A dav hlau daim duab tuaj yeem ua los ntawm cov kab ncaj, kab nkhaus, lossis ob qho tib si ncaj thiab nkhaus.

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