Qhov twg yog qhov ntev ntawm lub hypotenuse ntawm daim duab peb sab?

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Qhov twg yog qhov ntev ntawm lub hypotenuse ntawm daim duab peb sab?
Qhov twg yog qhov ntev ntawm lub hypotenuse ntawm daim duab peb sab?

Video: Qhov twg yog qhov ntev ntawm lub hypotenuse ntawm daim duab peb sab?

Video: Qhov twg yog qhov ntev ntawm lub hypotenuse ntawm daim duab peb sab?
Video: Nkauj tawm tshiab _QHov twg los tau _ by Xim vaj & Xeeb vwj & xis nus vaj _ (2020 - 2021 ) 2024, Hlis ntuj nqeg
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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

  1. 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.
  2. 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.

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