Formula: chav tsev thiab qhov ntev

Cov txheej txheem:

Formula: chav tsev thiab qhov ntev
Formula: chav tsev thiab qhov ntev

Video: Formula: chav tsev thiab qhov ntev

Video: Formula: chav tsev thiab qhov ntev
Video: leej twg tej ntxhai - Mang Vang [ Official MV ] 2024, Kaum ib hlis
Anonim

Yog tias koj npaj yuav kho koj tus kheej, ces koj yuav tsum tau kwv yees rau lub tsev thiab cov khoom tiav. Txhawm rau ua qhov no, koj yuav tsum suav thaj tsam ntawm chav tsev uas koj npaj yuav ua haujlwm kho. Tus pab tseem ceeb hauv qhov no yog cov qauv tsim tshwj xeeb. Qhov chaw ntawm thaj chaw, uas yog nws qhov kev suav, yuav tso cai rau koj txuag nyiaj ntau ntawm cov khoom siv hauv tsev thiab coj cov nyiaj txiag tso tawm kom zoo dua.

chav tsev formula
chav tsev formula

Geometric duab ntawm chav

Cov mis rau kev xam thaj tsam ntawm ib chav ncaj qha nyob ntawm nws cov duab. Qhov feem ntau raug rau cov qauv hauv tsev yog cov duab plaub thiab square. Txawm li cas los xij, thaum kho dua tshiab, daim ntawv qauv yuav raug hloov pauv. Chav yog:

  • Rectangular.
  • Square.
  • Kev teeb tsa tsis yooj yim (piv txwv li, puag ncig).
  • Nrog niches thiab ledges.

Txhua tus ntawm lawv muaj nws tus kheej suav cov yam ntxwv, tab sis, raws li txoj cai, siv cov qauv tib yam. Lub cheeb tsam ntawm ib chav tsev ntawm txhua yam duab thiab loj, ib txoj kev los yog lwm yam, yuav xam tau.

chav tsev formula
chav tsev formula

Ib lub kaum lossis square chav

Xaiv thaj tsam ntawm chav tsev plaub lossis plaub fab, tsuas yog nco ntsoov cov chav kawm geometry hauv tsev kawm ntawv. Yog li ntawd, nws yuav tsum tsis txhob nyuaj rau koj los txiav txim qhov chaw ntawm chav tsev. Cov mis laij lej zoo li:

S room=AB where

A yog qhov ntev ntawm chav.

B yog qhov dav ntawm chav.

Txhawm rau ntsuas cov txiaj ntsig no, koj yuav xav tau daim kab xev ntsuas tsis tu ncua. Txhawm rau kom tau txais kev suav tseeb tshaj plaws, nws tsim nyog ntsuas cov phab ntsa ntawm ob sab. Yog hais tias qhov tseem ceeb tsis converge, coj qhov nruab nrab ntawm cov ntaub ntawv tshwm sim raws li lub hauv paus. Tab sis nco ntsoov tias txhua qhov kev suav muaj lawv tus kheej yuam kev, yog li cov khoom siv yuav tsum tau yuav nrog cov npoo.

chav tsev formula
chav tsev formula

chav nrog kev teeb tsa nyuaj

Yog tias koj chav tsis poob rau hauv lub ntsiab lus ntawm "tus qauv", piv txwv li. muaj cov duab ntawm lub voj voog, daim duab peb sab, polygon, ces koj yuav xav tau ib tug txawv mis rau xam. Koj tuaj yeem sim ua kom muaj kev faib thaj chaw ntawm chav tsev nrog cov yam ntxwv zoo li no rau hauv cov duab plaub thiab ua kev suav hauv cov txheej txheem. Yog tias koj tsis muaj lub sijhawm zoo li no, siv cov hauv qab no:

Tus qauv rau kev nrhiav thaj chaw ntawm lub voj voog:

Sroom=πR2, qhov twg

π=3, 14;

R – room radius.

Tus qauv rau kev nrhiav thaj chaw ntawm daim duab peb sab:

S chav=√ (P(P - A) x (P - B) x (P - C)), qhov twg

P yog ib nrab ib puag ncig ntawm daim duab peb sab.

A, B, C yog qhov ntev ntawm nws sab.

Hence R=A+B+C/2

Yog tias koj muaj teeb meem thaum lub sijhawm suav, nws yog qhov zoo dua tsis txhob tsim txom koj tus kheej thiab tig mus rau cov kws tshaj lij.

formula rau xam qhov chaw ntawm ib chav tsev
formula rau xam qhov chaw ntawm ib chav tsev

thaj chaw ntawm chav nrog ledges thiab niches

Feem ntau cov phab ntsa yog dai kom zoo nkauj nrog cov khoom zoo nkauj nyob rau hauv daim ntawv ntawm ntau yam niches los yog ledges. Tsis tas li ntawd, lawv lub xub ntiag tuaj yeem yog vim qhov xav tau los nkaum qee qhov tsis zoo ntawm koj chav. Lub xub ntiag ntawm ledges los yog niches ntawm koj phab ntsa txhais tau hais tias kev suav yuav tsum tau ua nyob rau hauv theem. Cov. ua ntej, thaj tsam ntawm lub tiaj tiaj ntawm phab ntsa pom, thiab tom qab ntawd thaj tsam ntawm niche lossis ledge ntxiv rau nws.

thaj tsam ntawm phab ntsa pom los ntawm tus qauv:

S phab ntsa=P x C, qhov twg

P - ib puag ncig

С - qhov siab

Koj kuj yuav tsum xav txog qhov muaj qhov rais thiab qhov rooj. Lawv cheeb tsam yuav tsum tau muab rho tawm los ntawm tus nqi tshwm sim.

formula rau pem teb chaw
formula rau pem teb chaw

Room nrog tier qab nthab

Ntau theem qab nthab tsis nyuaj rau kev suav ntau npaum li nws zoo nkaus li thaum xub thawj siab ib muag. Yog hais tias nws muaj ib tug yooj yim tsim, ces kev xam yuav ua tau nyob rau hauv lub hauv paus ntsiab lus ntawm kev nrhiav thaj chaw ntawm phab ntsa nyuaj los ntawm niches thiab ledges.

Txawm li cas los xij, yog tias koj lub qab nthab tsim muaj arcuate thiab wavy ntsiab, cesnws yog qhov tsim nyog los txiav txim siab nws thaj chaw siv thaj chaw hauv pem teb. Rau qhov no koj xav tau:

  1. Nrhiav qhov ntev ntawm tag nrho cov phab ntsa ncaj nraim.
  2. Nrhiav thaj chaw hauv av.
  3. Mua qhov ntev thiab qhov siab ntawm ntu ntsug.
  4. Ntxiv cov txiaj ntsig rau hauv pem teb.
nrhiav thaj tsam ntawm ib chav tsev qauv
nrhiav thaj tsam ntawm ib chav tsev qauv

cov lus qhia ib ntus los txiav txim siab tag nrho

chav tsev

Yuav kom xam cov cheeb tsam ntawm koj chav kom raug, koj yuav xav tau tsis yog ib qho qauv xwb. Lub cheeb tsam ntawm chav tsev yog ntsuas nyob rau hauv theem nyob rau hauv ib tug nruj sequence, uas muaj xws li cov nram qab no cov khoom:

  1. Tau chav los ntawm yam tsis tsim nyog. Nyob rau hauv tus txheej txheem ntawm kev ntsuas, koj yuav xav tau dawb nkag mus rau txhua qhov chaw ntawm koj chav, yog li koj yuav tsum tau tshem ntawm txhua yam uas yuav cuam tshuam rau qhov no.
  2. Pom qhov sib faib chav rau hauv cov ntu ntawm cov duab tsis tu ncua thiab tsis xwm yeem. Yog tias koj chav tsev yog square lossis square, koj tuaj yeem hla cov kauj ruam no.
  3. Ua ib qho kev teeb tsa ntawm chav tsev. Qhov kev kos duab no xav tau kom tag nrho cov ntaub ntawv nyob ntawm koj lub ntsis ntiv tes. Tsis tas li, nws yuav tsis muab sijhawm rau koj kom tsis meej pem hauv ntau qhov kev ntsuas.
  4. Kev ntsuas yuav tsum tau ua ob peb zaug. Qhov no yog ib txoj cai tseem ceeb kom tsis txhob ua yuam kev hauv kev suav. Tsis tas li ntawd, yog tias koj siv lub laser daim kab xev ntsuas, xyuas kom cov nqaj nyob tiaj tus ntawm phab ntsa.
  5. Nrhiav tag nrho thaj chaw ntawm chav. Cov mis rau tag nrho cheeb tsam ntawm ib chav tsev yog nrhiav cov sum ntawm tag nrho cov cheeb tsam ntawm ib tug neegthaj chaw ntawm chav. Cov. S tag nrho=S phab ntsa + S pem teb + S ceilings

Pom zoo: