Puas yog txhua sab ntawm lub rhombus sib npaug?
Puas yog txhua sab ntawm lub rhombus sib npaug?

Video: Puas yog txhua sab ntawm lub rhombus sib npaug?

Video: Puas yog txhua sab ntawm lub rhombus sib npaug?
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Cov Rhombus

A rhombus yog plaub-sided duab qhov twg txhua sab muaj sib npaug ntev (cim "s"). Kuj ntxeev sab yog thaum uas tig mus thiab opposite ces kaum yog sib npaug.

Hauv qhov no, puas yog ob sab ntawm lub rhombus sib npaug?

A Rhombus yog ib lub tiaj tiaj nrog 4 sib npaug ncaj sab . Tawm tsam sab yog parallel, thiab opposite ces kaum yog sib npaug (nws yog a Parallelogram ). Thiab diagonals "p" thiab "q" ntawm a rhombus bisect ib leeg ntawm txoj cai kaum.

Tom qab, lo lus nug yog, yog tag nrho cov kaum ntawm rhombus 90? A rhombus yog hom parallelogram, thiab qhov txawv ntawm nws cov duab yog qhov ntawd tag nrho plaub ntawm nws sab yog congruent. Ib square yog ib rhombus thiab ib daim duab plaub. Hauv lwm lo lus, yog tias txhua tus lub kaum sab xis ntawm a rhombus yog 90 °, ces nws yog square.

Tsuas yog li ntawd, muaj pes tsawg sab ntawm lub rhombus?

plaub sab

Puas yog rhombus yog parallelogram?

DEFINITION: A rhombus yog a parallelogram nrog plaub sab congruent. THEOREM: Yog a parallelogram yog a rhombus , txhua kab pheeb ces kaum bisects ib khub ntawm opposite ces kaum. THEOREM Converse: Yog a parallelogram muaj diagonals uas bisect ib khub ntawm opposite ces kaum, nws yog ib rhombus.

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