Video: Dab tsi yog qhov sib npaug ntawm qhov siab ntawm parallelogram?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov qhov siab (los yog qhov siab) ntawm a parallelogram yog qhov kev ncua deb ntawm lub hauv paus mus rau sab nraud (uas yuav tsum tau txuas ntxiv). Hauv daim duab saum toj no, lub qhov siab sib thooj mus rau hauv paus CD yog qhia. Cov sab nraud yog congruent (sib npaug ntawm qhov ntev) thiab parallel.
Kuj paub, dab tsi yog txhais los ntawm qhov siab sib xws?
Hauv geometry, ib qhov siab ntawm ib daim duab peb sab yog ib txoj kab los ntawm ib tug vertex thiab perpendicular rau (piv txwv li, ua ib lub kaum sab xis nrog) ib kab uas muaj lub hauv paus (sab opposite lub vertex). Qhov ntev ntawm cov qhov siab , feem ntau tsuas yog hu ua "tus qhov siab ", yog qhov kev ncua deb ntawm lub hauv paus txuas ntxiv thiab vertex.
Ib yam li ntawd, qhov piv txwv ntawm qhov siab yog dab tsi? Definition: ib qhov siab yog ib ntu los ntawm lub vertex ntawm daim duab peb sab mus rau sab nraud thiab nws yuav tsum yog nyob rau ntawm ntu ntawd (hu ua lub hauv paus). Raws li daim duab hauv qab no qhia tau hais tias, qee zaum cov qhov siab tsis ncaj qha mus ntsib tus opposite sab ntawm daim duab peb sab.
Ib tug kuj yuav nug, cov duab dab tsi yog parallelograms?
Parallelograms yog cov duab uas muaj plaub sab nrog ob khub ntawm sab uas yog parallel. Cov plaub cov duab uas ua tau raws li qhov yuav tsum tau muaj ntawm parallelogram yog square , duab plaub , rhombus , thiab rhomboid.
Qhov txawv ntawm perpendicular thiab qhov siab yog dab tsi?
1 Teb. Segment koom nrog ib qho vertex mus rau nruab nrab-point ntawm opposite sab yog hu ua qhov nruab nrab. Perpendicular los ntawm ib tug vertex mus rau opposite sab yog hu ua qhov siab . Ib kab uas dhau los ntawm nruab nrab-point ntawm ib ntu thiab yog perpendicular ntawm ntu yog hu ua perpendicular bisector ntawm ntu.
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