Cov sum ntawm cov ces kaum sab hauv sab hauv cov ces kaum Qhov kev ntsuas ntawm lub kaum sab nrauv ntawm lub vertex tsis cuam tshuam los ntawm qhov twg yog txuas ntxiv: ob lub kaum sab nrauv uas tuaj yeem tsim ntawm ib qho vertex los ntawm extending alternately ib sab los yog lwm yam yog ntsug kaum thiab yog li sib npaug. https://en.wikipedia.org › wiki › Internal_and_external_angles
kaum sab hauv thiab sab nraud - Wikipedia
ntawm ib qho plaub ntug yog 360 °. Xav txog ob qho piv txwv hauv qab no. … Txij li thaum lub sum ntawm lub sab hauv lub kaum sab xis ntawm ib daim duab peb sab yog 180 ° thiab muaj ob daim duab peb sab nyob rau hauv ib tug quadrilateral, cov sum ntawm lub kaum sab xis rau txhua quadrilateral yog 360 °.
Puas plaub plaub muaj tus lej ntawm 360?
Lub Quadrilateral Sum Conjecture qhia peb tias sum ntawm cov ces kaum ntawm txhua qhov convex quadrilateral yog 360 degreesNco ntsoov tias lub polygon yog convex yog tias txhua qhov ntawm nws cov kaum sab hauv yog tsawg dua 180 degree. Hauv lwm lo lus, lub polygon yog convex yog tias nws tsis khoov "inwards ".
Puas tag nrho cov duab yuav tsum ntxiv txog 360?
Cov kaum sab nrauv ntawm lub polygon muaj ntau yam khoom tshwj xeeb. Cov sum ntawm sab nrauv lub kaum sab xis nyob rau hauv ib tug polygon yeej ib txwm sib npaug rau 360 degrees Yog li ntawd, rau tag nrho cov equiangular polygons, qhov ntsuas ntawm ib sab sab nrauv yog sib npaug rau 360 muab faib los ntawm tus naj npawb ntawm sab hauv lub polygon..
Vim li cas quadrilaterals muaj qhov sib npaug sab hauv ntawm 360 degrees?
Lub quadrilateral yog plaub-sided polygon uas tuaj yeem muaj lossis tsis muaj vaj huam sib luag. Thaum peb kos cov kab pheeb ces kaum mus rau plaub fab, nws ua ob daim duab peb sab. Ob daim duab peb sab no muaj lub kaum sab xis ntawm 180 °. Yog li ntawd, tag nrho lub kaum sab xis ntawm lub quadrilateral yog 360 °.
Ua txhua lub kaum sab xis ntawm lub plaub fab sib npaug 360?
Tag nrho cov kev ntsuas ntawm tag nrho plaub lub kaum sab hauv ntawm lub plaub fab ib txwm sib npaug 360 degrees.
