Video: Midsegment yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A midsegment yog kab ntu txuas rau nruab nrab ntawm ob sab ntawm daim duab peb sab. Txij li daim duab peb sab muaj peb sab, txhua daim duab peb sab muaj peb midsegments . Ib daim duab peb sab midsegment yog parallel mus rau sab thib peb ntawm daim duab peb sab thiab yog ib nrab ntawm qhov ntev ntawm peb sab.
Ntawm no, Midsegment formula yog dab tsi?
A midsegment txuas qhov nruab nrab ntawm ob sab ntawm daim duab peb sab los yog cov tsis sib xws ntawm lub trapezoid. Cov duab sib xws yog qhov sib npaug ntawm qhov loj, zoo thiab ntsuas. Qhov nruab nrab qauv hais tias rau qhov kawg (x_1, y_1) thiab (x_2, y_2), qhov nruab nrab yog sab laug (frac{x_1+x_2}{2}, frac{y_1+y_2}{2} ight).
Ib yam li ntawd, Midsegment ntawm lub trapezoid yog dab tsi? A trapezoid midsegment txuas lub midpoints ntawm ob congruent sab ntawm lub trapezoid , thiab yog parallel rau cov khub ntawm parallel sab. Qhov ntev ntawm cov midsegment yog tus lej ntawm ob lub hauv paus muab faib los ntawm 2. Nco ntsoov tias lub hauv paus ntawm a trapezoid yog ob qho tib si sab nraud.
Ua raws li qhov no hauv kev txiav txim siab, qhov nruab nrab puas tuaj yeem yog Midsegment?
Qhov no txawv ntawm a nruab nrab , uas txuas ib lub vertex mus rau nruab nrab ntawm qhov opposite sab. Tsim ib tug midsegment , nrhiav qhov nruab nrab ntawm ob sab. Qhov no ua tau yuav tsum tau ua los ntawm kos ib lub perpendicular bisector ntawm ib sab ntawm daim duab peb sab. A nruab nrab yuav muaj cov vertex, cov midsegment yuav tsis yog.
Koj ua pov thawj li cas Midsegment ntawm daim duab peb sab?
Cov Daim duab peb sab Midsegment Theorem hais tias, yog tias peb txuas qhov nruab nrab ntawm ob sab ntawm ib daim duab peb sab nrog ib kab segment, ces kab segment txaus siab rau cov nram qab no ob yam khoom: Cov kab segment yuav parallel mus rau sab peb. Qhov ntev ntawm txoj kab ntu yuav yog ib nrab ntawm qhov ntev ntawm peb sab.
Pom zoo:
Dab tsi yog Midsegment theorem ntawm lub trapezoid?
Trapezoid Midsegment Theorem. Daim duab peb sab midsegment theorem hais tias txoj kab txuas nruab nrab ntawm ob sab ntawm daim duab peb sab, hu ua midsegment, yog sib npaug mus rau sab thib peb, thiab nws qhov ntev yog sib npaug rau ib nrab ntawm qhov ntev ntawm peb sab
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