Cov kab pheeb ces kaum ntawm rhombus sib tshuam ntawm cov kaum sib npaug, hos cov kab pheeb ces kaum ntawm ib daim duab plaub yog qhov sib npaug ntawm qhov ntev.
Nyob rau hauv daim duab kab pheeb ces kaum sib npaug?
Nyob rau hauv ib lub parallelogram, cov sab nraud yog sib npaug, cov ces kaum sib npaug sib npaug thiab kab pheeb ces kaum sib npaug. Nyob rau hauv lub rhombus diagonals sib tshuam ntawm txoj cai kaum. Hauv ib daim duab plaub kab pheeb ces kaum yog sib npaug.
Puas diagonals ntawm rhombus sib npaug thiab sib npaug?
Ib lub rhombus yog plaub fab nrog txhua sab sib npaug. … Nws ob sab yog sib npaug. Nws cov kaum sab nraud yog sib npaug. Nws kab pheeb ces kaum sib sib zog nqus.
Dab tsi yog kev sib raug zoo ntawm kab pheeb ces kaum ntawm lub rhombus?
Kev sib tshuam ntawm kab pheeb ces kaum ntawm lub rhombus qauv 90 degree (txoj cai) kaum. Qhov no txhais tau tias lawv yog perpendicular. Lub diagonals ntawm ib lub rhombus bisect ib leeg. Qhov no txhais tau hais tias lawv txiav ib nrab ib nrab.
Puas yog kab pheeb ces kaum ntawm lub rhombus kab pheeb ces kaum?
Nyob rau hauv ib lub rhombus, cov kab pheeb ces kaum (kab txuas cov ces kaum) bisect ib leeg 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.
