Cov txheej txheem:
- Ntev npaum li cas ntawm qhov hypotenuse ntawm daim duab peb sab 8cm 15cm?
- Vim li cas tus hypotenuse sib npaug li 1?
- Koj pom qhov ntev ntawm ib sab ntawm daim duab peb sab li cas?
- 30 60 90 daim duab peb sab yog dab tsi?
Video: Qhov twg yog qhov ntev ntawm lub hypotenuse ntawm daim duab peb sab?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Nyob rau hauv geometry, lub hypotenuse yog qhov ntev tshaj plaws ntawm daim duab peb sab sab xis, sab tawm ntawm lub kaum sab xis. Qhov ntev ntawm lub hypotenuse tuaj yeem pom siv Pythagorean theorem, uas hais tias lub square ntawm qhov ntev ntawm lub hypotenuse sib npaug ntawm cov squares ntawm qhov ntev ntawm ob sab
Ntev npaum li cas ntawm qhov hypotenuse ntawm daim duab peb sab 8cm 15cm?
Vim li no hypotenuse ntawm txoj cai daim duab peb sab yog 17 cm.
Vim li cas tus hypotenuse sib npaug li 1?
Lub hypotenuse ntawm koj daim duab peb sab muaj ib qho kawg taw tes nyob rau hauv nruab nrab ntawm lub voj voog thiab lwm qhov kawg taw tes ntawm lub voj voog. Vim tias koj ua haujlwm nrog lub voj voog, koj qhov hypotenuse tau ntev 1Nco qab tias qhov sib piv sine thiab cosine ob leeg koom nrog qhov ntev ntawm lub hypotenuse hauv tus lej.
Koj pom qhov ntev ntawm ib sab ntawm daim duab peb sab li cas?
Txoj Cai Peb Hlis thiab Pythagorean Theorem
- Pythagorean Theorem, a2 + b2=c2, a 2 + b 2=c 2, siv tau los nrhiav qhov ntev ntawm ib sab ntawm daim duab peb sab.
- Sab tawm ntawm lub kaum sab xis yog hu ua hypotenuse (sab c hauv daim duab).
30 60 90 daim duab peb sab yog dab tsi?
Thiab li ntawd. Lub sab opposite lub kaum sab xis 30 ° yog qhov tsawg tshaj plaws, vim 30 degrees yog lub kaum sab xis me tshaj. Sab nraub qaum ntawm 60 ° lub kaum sab xis yuav yog qhov nruab nrab ntev, vim tias 60 ° yog lub kaum sab xis ntawm qhov nruab nrab ntawm daim duab peb sab.
Pom zoo:
Puas yog daim duab peb sab sib npaug yog daim duab peb sab?
No, ib daim duab peb sab tsis tuaj yeem yog daim duab peb sab sib npaug . Puas yog daim duab peb sab sib npaug yog daim duab peb sab txoj cai piav qhia koj cov lus teb? Daim duab peb sab sib npaug tsis tuaj yeem yog daim duab peb sab yogQhov no ua rau kev nkag siab vim tias lub kaum sab xis ntsuas hauv ib daim duab peb sab, tsis yog daim duab peb sab sib npaug, sib npaug 180 degrees.
Yuav ua li cas yog txoj hauv kev twg yog lub tuam txhab daim duab peb sab lub tsho lub tsho ua haujlwm txaus ntshai?
Cov neeg ua haujlwm hauv lub Hoobkas, feem ntau yog cov ntxhais hluas tsis ntev los no los ntawm Tebchaws Europe, tsis muaj sijhawm lossis sijhawm khiav tawm. Cov hluav taws kub hnyiab sai sai tua 146 tus neeg ua haujlwm Lub tsev tsuas muaj ib qho kev khiav tawm hluav taws, uas tau tawg thaum lub sijhawm cawm.
Qhov kev hloov pauv twg tau tshwm sim los ntawm daim duab peb sab lub tsho lub tsho?
Qhov kev hloov pauv twg tau tshwm sim los ntawm qhov hluav taws kub ntawm Lub Tuam Txhab Daim Duab Peb Hlis? nom tswv machines . Cov teeb meem dab tsi ntawm cov chaw ua haujlwm tau ua rau Daim Duab Peb Hlis Shirtwaist Factory hluav taws ua rau pom?
Nyob rau hauv daim duab peb sab txoj cai lub square ntawm hypotenuse?
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 .
Qhov twg yog qhov hypotenuse ntawm daim duab peb sab isosceles?
Yog, lub hypotenuse yog ib txwm yog sab ntev tshaj, tab sis tsuas yog rau txoj cai kaum sab xis. Rau cov duab peb sab isosceles, ob sab sib npaug yog hu ua ob txhais ceg, thaum nyob rau hauv daim duab peb sab sib npaug txhua sab yog paub yooj yim li ob sab .
