Video: Puas yog cov kab pheeb ces kaum ib txwm sib sib zog nqus hauv ib qho parallelogram?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hauv ib qho twg parallelogram , cov kab pheeb ces kaum (kab txuas rov qab cov ces kaum) sib sib . Ntawd yog, txhua kab pheeb ces kaum txiav cov lwm yam ua ob qhov sib npaug. Nyob rau hauv daim duab saum toj no luag tej vertex rau reshape lub parallelogram thiab ntseeg koj tus kheej qhov no yog li ntawd.
Ua qhov no hauv kev pom, puas kab pheeb ces kaum ntawm parallelogram bisect ib leeg ntawm 90?
Hauv ib qho twg rhombus , cov kab pheeb ces kaum (kab txuas rov qab cov ces kaum) sib sib ntawm txoj cai kaum ( 90 °). Ntawd yog, txhua kab pheeb ces kaum txiav cov lwm yam rau hauv ob qhov sib npaug, thiab lub kaum sab xis uas lawv hla ib txwm 90 qib.
Tom qab ntawd, lo lus nug yog, uas Quadrilaterals ib txwm muaj kab pheeb ces kaum uas sib sib zog nqus? Quadrilaterals
| A | B |
|---|---|
| Nyob rau hauv cov ntaub ntawv no, lub diagonals yog congruent | duab plaub, square, isosceles trapezoid |
| nyob rau hauv cov quadrilaterals, txhua tus diagonals bisects ib khub ntawm opposite ces kaum | rhombus, square |
| Nyob rau hauv cov ntaub ntawv no, lub diagonals yog perpendicular | rhombus, square |
| ib lub rhombus ib txwm ib | parallelogram |
Tom qab ntawd, lo lus nug yog, dab tsi cov duab muaj kab pheeb ces kaum uas tsis sib thooj?
Txij li cov lus nug yog hais txog kab pheeb ces kaum sib sib zog nqus, uas txhais tau hais tias lawv txiav ib leeg ib nrab, cov lus teb raug rau cov lus nug yog D. Trapezoid , txij li thaum lwm tus poob rau hauv qeb ntawm parallelogram, uas nws diagonals ib txwm bisect.
Puas yog parallelogram diagonals perpendicular?
Cov kab pheeb ces kaum yog perpendicular thiab sib pab. Lub square yog ib hom tshwj xeeb ntawm parallelogram uas tag nrho cov ces kaum thiab sab yog sib npaug. Kuj, a parallelogram ua ib square thaum lub kab pheeb ces kaum yog sib npaug thiab txoj cai bisectors ntawm ib leeg.
Pom zoo:
Puas yog ob kab pheeb ces kaum ntawm parallelogram sib npaug?
Thaum ib qho parallelogram muab faib ua ob daim duab peb sab peb tau pom tias cov ces kaum thoob plaws ib sab (ntawm no kab pheeb ces kaum) sib npaug. Qhov no ua pov thawj tias cov kaum sab xis nyob rau hauv parallelogram kuj sib npaug. Cov kab pheeb ces kaum ntawm parallelogram tsis yog qhov sib npaug
Puas yog kab pheeb ces kaum ntawm parallelogram bisect ib leeg ntawm 90?
Nyob rau hauv txhua lub rhombus, cov kab pheeb ces kaum (kab txuas cov ces kaum sib txawv) sib cais ntawm txoj cai kaum (90 °). Ntawd yog, txhua kab pheeb ces kaum txiav rau lwm qhov sib npaug, thiab lub kaum sab xis uas lawv hla yog ib txwm 90 degrees
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Yuav ua li cas koj ua pov thawj tias cov kab pheeb ces kaum ntawm lub rhombus bisect ib leeg?
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