Video: Puas yog kab pheeb ces kaum ntawm parallelogram bisect ib leeg ntawm 90?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hauv ib qho twg rhombus , cov kab pheeb ces kaum (kab txuas rov qab cov ces kaum) bisect ib leeg ntawm txoj cai kaum ( 90 °). Qhov 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 yog ib txwm 90 qib.
Dhau li ntawm no, puas diagonals bisect ib leeg nyob rau hauv parallelogram?
Hauv ib qho twg parallelogram , cov kab pheeb ces kaum (kab txuas rov qab cov ces kaum) sib sib . Qhov 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 yog li ntawd.
Kuj Paub, puas yog kab pheeb ces kaum ntawm lub trapezium bisect ib leeg ntawm 90 degrees? Ib khub ntawm diagonally opposite lub kaum sab xis yog sib npaug hauv kev ntsuas. Cov ces kaum yog hais tias congruent nrog ib leeg . Cov kab pheeb ces kaum ntsib sib 90 °, qhov no txhais tau hais tias lawv tsim ib qho perpendicular bisection.
Tsis tas li lo lus nug yog, puas yog kab pheeb ces kaum ntawm parallelogram bisect ib leeg ntawm txoj cai kaum?
Tsis yog, raws li txoj cai dav dav diagonals ntawm parallelogram ua tsis yog bisect ib leeg ntawm txoj cai kaum . Lub ntsiab txhais ntawm a parallelogram yog ib tug plaub-sided polygon nrog opposite sab parallel thiab sib npaug ntawm qhov ntev. Rau txhua tus parallelograms uas tsis yog squares, lub diagonals ua tsis sib tshuam ntawm txoj cai kaum.
Dab tsi yog cov diagonals ntawm parallelogram?
Cov kab pheeb ces kaum sib sib. Ib khub ntawm opposite sab yog parallel thiab sib npaug ntawm qhov ntev. Cov ces kaum uas nyob ib sab yog ntxiv. Txhua kab pheeb ces kaum faib lub quadrilateral rau hauv ob daim duab peb sab congruent.
Pom zoo:
Dab tsi yog kab pheeb ces kaum ntawm Nonagon?
Ib tug nonagon, los yog enneagon, yog ib tug polygon nrog cuaj sab thiab cuaj vertices, thiab nws muaj 27 diagonals txawv.Cov mis rau kev txiav txim tus naj npawb ntawm diagonals ntawm ann-sided polygon yog n(n - 3)/2; Yog li, ib tug nonagon muaj 9(9 -3)/2 = 9(6)/2 = 54/2 = 27 diagonals
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 cov kab pheeb ces kaum ib txwm sib sib zog nqus hauv ib qho parallelogram?
Nyob rau hauv ib qho parallelogram, cov kab pheeb ces kaum (kab txuas cov ces kaum sib txawv) sib sib zog nqus. Ntawd yog, txhua kab pheeb ces kaum txiav rau lwm qhov rau hauv ob qhov sib npaug. Nyob rau hauv daim duab saum toj no luag tej vertex los reshape lub parallelogram thiab convince koj tus kheej qhov no yog li ntawd
Kuv yuav ua li cas xaiv kab pheeb ces kaum hauv Photoshop?
Hauv Photoshop, ua lub ellipse qhov loj thiab cov duab uas koj xav tau. Tom qab ntawd, mus rau 'Xaiv' ntawv qhia zaub mov thiab xaiv 'Hloov Xaiv' thiab tig / hloov pauv qhov kev xaiv. Qhov no yuav tsis tig / ntsuas cov duab hauv qab, tsuas yog xaiv qhov 'mav mus taug kev
Yuav ua li cas koj ua pov thawj tias cov kab pheeb ces kaum ntawm lub rhombus bisect ib leeg?
Nyob rau hauv ib lub rhombus txhua sab yog sib npaug thiab opposite sab yog parallel. Ntxiv mus, lub rhombus kuj yog ib qho parallelgram thiab yog li nthuav tawm cov khoom ntawm parallelogram thiab cov kab pheeb ces kaum ntawm parallelogram bisect ib leeg