Pythagorean Theorem. Lub Pythagorean txoj kev xav hais tias nyob rau hauv ib tug txoj cai daim duab peb sab, lub square ntawm qhov ntev ntawm lub hypotenuse sib npaug rau cov lej ntawm cov squares ntawm qhov ntev ntawm ob txhais ceg ntawm txoj cai daim duab peb sab.
Dab tsi yog thaj tsam ntawm square ntawm lub hypotenuse ntawm txoj cai daim duab peb sab?
Nyob rau hauv ib daim duab peb sab, thaj tsam ntawm lub square kos los ntawm lub hypotenuse yog sib npaug rau cov sum ntawm cov cheeb tsam ntawm cov squares uas yog kos los ntawm ob txhais cegKoj tuaj yeem pom qhov no tau piav qhia hauv qab no hauv tib 3-4-5 txoj cai daim duab peb sab. Nco ntsoov tias Pythagorean Theorem tsuas yog ua haujlwm nrog txoj cai peb tog xwb.
Dab tsi yog square ntawm daim duab peb sab hypotenuse?
Pythagoras theorem formula hais tias nyob rau hauv ib daim duab peb sab ABC, lub square ntawm lub hypotenuse yog sib npaug rau cov lej ntawm cov square ntawm ob txhais ceg Yog tias AB, BC, thiab AC yog ob sab ntawm daim duab peb sab, ces: BC2=AB2 + AC2 Txawm yog a, b, thiab c yog ob sab ntawm daim duab peb sab, ces c2=a2 + b2
Nyob rau hauv daim duab peb sab lub square ntawm lub hypotenuse yog sib npaug rau cov lej ntawm cov square ntawm ob sab?
Nyob rau hauv ib daim duab peb sab txoj cai, lub square ntawm lub hypotenuse yog sib npaug rau cov sum ntawm squares ntawm ob sab.
Lub square ntawm daim duab peb sab yog hu ua dab tsi?
Nyob rau hauv ib daim duab peb sab, thaj tsam ntawm lub square uas nws sab yog tus hypotenuse (sab opposite lub kaum sab xis) yog sib npaug rau cov sum ntawm cov cheeb tsam ntawm cov squares uas nws ob sab yog ob ceg (ob sab uas sib ntsib ntawm lub kaum sab xis).
