Video: Dab tsi yog daim duab peb sab nrog ib lub kaum 90 degree hu ua?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A daim duab peb sab nrog ib tug 90 ° lub kaum sab xis yog hu ua ib txoj cai daim duab peb sab.
Yog li ntawd, dab tsi yog daim duab peb sab nrog lub kaum sab xis 90 degree hauv nws hu ua?
A txoj cai daim duab peb sab (American English) los yog txoj cai -angled daim duab peb sab (British English) yog a daim duab peb sab hauv ib qho lub kaum sab xis yog a sab xis (yog, a 90 - kaum sab xis ). Sab opposite lub sab xis yog hu ua hypotenuse (sab c hauv daim duab).
Ib yam li ntawd, koj hu li cas daim duab peb sab nrog ib sab nkhaus? Ib thaj tsam ntawm Reuleaux daim duab peb sab yog qhov dav qhov nkhaus tsis tu ncua raws li qhov sib npaug daim duab peb sab . Tag nrho cov ntsiab lus ntawm a sab yog equidistant los ntawm opposite vertex.
Tsis tas li ntawd, lub npe ntawm daim duab peb sab nrog ib lub kaum sab xis yog dab tsi?
Daim duab peb sab txoj cai muaj ib lub kaum sab xis uas yog lub kaum sab xis (90º). Cov duab peb sab tuaj yeem ua tau isosceles los yog scalene. Qhov no yog lub kaum sab xis scalene daim duab peb sab vim tsis muaj sab yog tib qhov ntev. Cov sab opposite lub kaum sab xis yog hu ua hypotenuse.
Txoj cai 3 4 5 Daim duab peb sab yog dab tsi?
Ib qho daim duab peb sab nws sab yog nyob rau hauv qhov ratio 3 : 4 : 5 yog ib txoj cai daim duab peb sab . Xws li daim duab peb sab uas muaj lawv sab hauv qhov piv ntawm tag nrho cov lej hu ua Pythagorean Triples. Yog tias koj muab ob sab los ntawm ib tus lej, qhov tshwm sim tseem yuav yog txoj cai daim duab peb sab nws sab yog nyob rau hauv qhov ratio 3 : 4 : 5 . Piv txwv li 6, 8, thiab 10.
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