Ib tug trapezoid yog quadrilateral nrog tsawg kawg yog ib khub ntawm tib sab. … Nyob rau hauv cov duab no, ob sab yog sib npaug, thiab yog li ntawd lawv tsis tau tsuas yog raws li cov kev cai rau ua ib tug trapezoid (quadrilateral nrog tsawg kawg yog ib khub ntawm parallelogram) tab sis kuj yuav tsum tau ua ib tug parallelogram.
Dab tsi ua rau lub trapezoid A quadrilateral?
A trapezoid is a quadrilateral nrog raws nraim ib khub ntawm qhov sib luag.
Puas yog trapezoid A quadrilateral?
No. Lub trapezoid txhais tau tias yog a quadrilateral nrog ob sab sib luag. Yog li ntawd, qhov zoo ntawm "quadrilateral" yog qhov tsim nyog, thiab qhov xwm txheej no txaus siab. … Lwm cov duab tuaj yeem muaj plaub sab, tab sis yog tias nws tsis muaj (tsawg kawg) ob sab sib npaug, nws tsis tuaj yeem ua tus trapezoid.
Puas yog lub trapezoid Ib lub quadrilateral ib txwm qee zaum lossis tsis tau?
Ib lub trapezoid yuav muaj raws nraim ib khub ntawm qhov sib npaug. Quadrilaterals yuav muaj plaub sab congruent. Lub trapezoid yog parallelogram.
Koj ua li cas ua pov thawj tias plaub plaub fab yog lub trapezium?
Ib txoj hauv kev los ua pov thawj tias plaub plaub fab yog ib qho isosceles trapezoid yog qhia:
- Lub plaub fab muaj ob sab sib npaug.
- Lub hauv paus kaum sab xis yog sib haum thiab lub hauv paus lub hauv paus yog congruent.
