Dab tsi ua rau rhombus thiab ib daim duab plaub sib koom?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Diagonals ntawm a Rhombus tsim daim ntawv plaub sab hauv daim duab peb sab. Diagonals ntawm a rhombus bisect ib leeg txhais tau tias lawv txiav ib leeg nyob rau hauv ib nrab. A duab plaub muaj qhov sib txawv ntawm qhov sib txawv. nyob rau hauv ntxiv duab plaub muaj 4 lub kaum sab xis, thiab kab pheeb ces kaum uas sib npaug.

Hais txog qhov no, cov khoom dab tsi ua lub rhombus thiab lub duab plaub muaj qhov sib xws?

Cov rhombus muaj cov hauv qab no khoom : Txhua tus khoom ntawm a parallelogram siv (cov uas tseem ceeb ntawm no yog cov sib npaug sab, oppositeangles yog congruent, thiab sib law liag ces kaum yog ntxiv). Tag nrho cov sab yog congruent los ntawm txhais. Cov diagonals bisect theangles.

Ib yam li ntawd, puas yog ib daim duab plaub yog rhombus? Txhua square yog a rhombus , thiab a rhombus tuaj yeem yog square, yog tias tag nrho nws cov ces kaum yog 90 degrees. Yog li ntawd, a rhombus tuaj yeem yog a duab plaub (yog tias cov ces kaum ntawm lub rhombus tag nrho 90 degrees), thiab a duab plaub tuaj yeem yog a rhombus (yog hais tias ob sab ntawm lub duab plaub yog txhua yam sib npaug).

Raws li, dab tsi yog 3 tus cwj pwm ntawm lub rhombus?

Ib txoj hauv kev zoo los muab cov khoom lossis cov yam ntxwv ntawm cov duab geometrical yog saib:

• sab (sib npaug thiab parallel)
• lub kaum sab xis (sib npaug, 90 °)
• cov diagonals (sib npaug, bisected, perpendicular)
• symmetry (kab los yog rotational)

Qhov kev sib raug zoo ntawm lub square thiab rhombus yog dab tsi?

Ob leeg a rhombus thiab a square areparallelograms thiab quadrilaterals (uas txhais tau hais tias lawv muaj plaub sab nrog rau qhov sib npaug sib npaug). Qhov txawv tseem ceeb nruab nrab ob yog tias, thaum a rhombus muaj ob opposite sab hauv ntawm sib npaug, a square muaj plaub txoj cai sib npaug.