Nrhiav Cov Khoom - 3
A lub plab tuag yog ib daim duab plaub sab uas muaj ib khub ntawm cov sab sib luag (cov kab sib luag hauv ib qho chaw yog cov kab uas yeej tsis sib ntsib). A duab plaub yog ib daim duab plaub sab uas muaj ob khub ntawm sab sib luag. A duab plaub yog ib daim duab plaub sab uas muaj plaub lub ces kaum sab xis. A square yog ib lub duab plaub fab uas muaj plaub sab sib npaug. txoj cai daim duab peb sab yog ib daim duab peb ceg uas muaj lub kaum sab xis.
Qhov kev sib tw
Siv cov duab trapezoids, parallelograms, rectangles, squares thiab right triangles los rhuav cov duab no. Siv ob peb daim li koj ua tau.
KEV THAWJ ZAUG
Koj nrhiav tau pes tsawg txoj hauv kev los ua qhov no siv cov khoom tsawg kawg no?
Sau ntawv
Qhov kev sib tw
Nov yog ob txoj hauv kev los rhuav daim duab no ua plaub daim duab. Cov lus teb ntawm sab laug siv lub duab plaub fab, lub duab parallelogram, lub duab peb ceg sab xis, thiab lub duab plaub fab. Cov lus teb ntawm sab xis siv lub duab plaub fab, ob lub trapezoids, thiab lub duab plaub fab. Muaj lwm cov lus teb, xws li hloov cov lus teb thawj zaug los ntawm kev tig lub duab plaub fab thiab parallelogram mus rau hauv lub trapezoid thiab lub duab peb ceg sab xis. Koj cov tub ntxhais kawm tuaj yeem nrhiav tau pes tsawg cov lus teb?
