Puas yog diagonals ntawm lub kaum sab xis square bisectors?
Puas yog diagonals ntawm lub kaum sab xis square bisectors?

Video: Puas yog diagonals ntawm lub kaum sab xis square bisectors?

Video: Puas yog diagonals ntawm lub kaum sab xis square bisectors?
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Cov square muaj cov khoom nram qab no:

Txhua yam khoom ntawm lub rhombus siv (cov uas tseem ceeb ntawm no yog cov kab sib txuas, kab pheeb ces kaum yog perpendicular bisectors ntawm ib leeg, thiab kab pheeb ces kaum ua bis lub kaum sab xis ). Tag nrho cov khoom ntawm ib daim duab plaub siv tau (tsuas yog ib qho tseem ceeb ntawm no yog kab pheeb ces kaum yog congruent).

Ntawm no, puas yog kab pheeb ces kaum ntawm lub kaum sab xis ntawm lub kaum sab xis?

Cov diagonals ntawm ib daim duab plaub yuav tsuas bisect lub kaum sab xis yog cov sab uas sib ntsib ntawm lub lub kaum sab xis yog sib npaug: nyob rau hauv lwm yam lus, tsuas yog hais tias tus duab plaub yog square. Lwm txoj kev xav txog nws: lub lub kaum sab xis yog ib txoj cai- lub kaum sab xis , thiab cov lub kaum sab xis bisector yuav tsum tawm ntawm ib nrab txoj cai- lub kaum sab xis mus rau sab. Li no lub duab plaub yuav tsum yog square.

Ib tug kuj yuav nug, yog kab pheeb ces kaum ntawm square bisect ib leeg? A square yog ib qho tshwj xeeb ntawm ib qho isosceles trapezoid, kite, parallelogram, quadrilateral, duab plaub, rhombus, thiab trapezoid. Cov kab pheeb ces kaum ntawm a square bisect ib lwm thiab yog perpendicular (daim duab liab hauv daim duab saum toj no). Ntxiv rau, lawv bisc ib khub ntawm opposite ces kaum (piav qhia nyob rau hauv xiav).

Xav txog qhov no, qhov twg Quadrilaterals ua cov diagonals bisect lub kaum?

A quadrilateral yog ib tug rhombus yog: nws yog ib tug parallelogram, thiab ib tug ob sab ntawm ib sab yog sib, nws diagonals ob sab ib leeg ntawm txoj cai lub kaum sab xis , nws diagonals ntawm bisect txhua vertex lub kaum sab xis.

Lub diagonal ntawm square yog dab tsi?

Diagonals ntawm a square . A square muaj ob kab pheeb ces kaum , uas yog kab segments txuas opposite vertices (cov ces kaum) ntawm lub square . Hauv lwm lo lus, qhov point qhov twg kab pheeb ces kaum sib tshuam (hla), faib txhua kab pheeb ces kaum ua ob qhov sib npaug. Txhua kab pheeb ces kaum faib cov square nyob rau hauv ob congruent isosceles txoj cai triangles.

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