Cubic yards (sau luv yd3) yog chav ntsuas ntawm ntim sib npaug rau ntim ntawm lub voos xwmfab uas nws sab yog 1 yard lossis kwv yees li 764.5 litres. Qhov ntsuas kub yog ib chav ntsuas uas tau siv dav rau ntau hom haujlwm thiab ua haujlwm tau zoo, piv txwv li thaum nchuav pob zeb hauv kev tsim kho. Rau ib lub duab plaub nrog ntev P, dav L, thiab siab T, ntim hauv qhov cub hauv qhov cub tuaj yeem nrhiav tau yooj yim siv cov zauv Ntim = W × W × H, muab tias P, L, thiab T raug ntsuas hauv qhov chaw.
Kauj ruam
Txoj Kev 1 ntawm 2: Nrhiav Ntim ntawm Lub Tsev 3-Dimensional
Kauj Ruam 1. Nrhiav txhua qhov kev ntsuas ntsuas hauv qhov chaw
Qhov ntim ntawm cubic yards rau ntau yam qauv peb-seem duab tuaj yeem nrhiav tau yooj yim siv ob peb yam yooj yim. Txawm li cas los xij, cov zauv no tsuas siv tau yog tias txhua qhov kev ntsuas tau ua hauv vaj. Yog li, ua ntej siv ib qho ntawm cov kev ua zauv no, nws yog ib qho tseem ceeb kom paub tseeb tias koj ntsuas koj qhov ntsuas thawj zaug hauv qhov chaw lossis koj hloov qhov ntsuas mus rau qhov yoj siv qhov hloov pauv. Nov yog qee qhov kev ntsuas hloov pauv rau qhov ntev:
- 1 yard = 3 fij
- 1 yard = 36 ntiv
- 1 yard = 0.914 m
- 1 yard = 91.44 cm
Kauj Ruam 2. Siv qhov sib npaug P × L × T los tsim qhov chaw sib puag
Qhov ntim ntawm ib qho peb-dimensional shape of a quadrilateral (rectangular prism, cubic, etc.) tuaj yeem pom yooj yim los ntawm kev sib npaug nws qhov ntev, dav, thiab qhov siab. Qhov sib npaug no tseem tuaj yeem xav txog kev sib npaug thaj tsam ntawm ib sab ntawm ib lub duab plaub ntawm cov duab los ntawm qhov ntev uas yog nyob ib puag ncig rau sab ntawd.
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Piv txwv li, peb xav nrhiav lub ntim (hauv yd3) los ntawm chav noj mov hauv peb lub tsev. Qhov chaw noj mov yog 4 yd ntev, 3 yd dav, thiab 2.5 yd siab. Txhawm rau nrhiav qhov ntim ntawm chav, peb tsuas yog xav kom muab qhov ntev, dav thiab qhov siab:
- 4 × 3 × 2, 5
- = 12 × 2, 5
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= 30. Chav muaj ntim 30 ydjj3.
- Lub voos xwmfab yog plaub fab uas nws txhua sab yog tib qhov ntev. Yog li, qhov sib npaug rau nrhiav qhov ntim ntawm ib lub voos xwmfab tuaj yeem yooj yim los ntawm P × L × T mus rau P.3, lwm yam
Kauj Ruam 3. Txhawm rau tsim qhov chaw cylindrical, siv qhov sib npaug pi × R2 × T.
Nrhiav qhov ntim ntawm cov duab cylindrical tuaj yeem ua tiav los ntawm kev sib piv thaj tsam ob sab ntawm ib sab ntawm lub voj voog los ntawm qhov siab lossis ntev ntawm lub tog raj kheej. Nrhiav thaj tsam ntawm lub voj voos ib sab siv thaj tsam sib npaug rau lub voj voos: sib npaug zauv zauv sib npaug pi (3, 1415926…) los ntawm lub vojvoog lub vojvoog (nrug ntawm lub voj voos nruab nrab mus rau ib qho ntawm nws ib sab) ua ke. Tom qab ntawd, tsuas yog muab cov lus teb no los ntawm qhov siab ntawm lub tog raj kheej kom pom qhov ntim ntawm lub tog raj kheej. Raws li ib txwm muaj, xyuas kom tseeb tias txhua qhov txiaj ntsig nyob hauv qhov chaw.
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Piv txwv li, cia peb hais tias peb xav nrhiav qhov ntim ntawm lub qhov tubular ntawm peb lub sam thiaj qab ua ntej txhim kho tus ciav dej. Cov qhov yog 1.5 yards hla thiab 1 yard tob. Faib qhov ntev ntawm lub qhov los ntawm ob qho kom tau txais lub vojvoog ntawm lub qhov, uas yog 0.75 yards. Tom qab ntawd, muab koj cov lej sib txawv raws qhov sib npaug rau qhov ntim ntawm lub tog raj kheej:
- (3, 14159) × 0, 752 × 1
- = (3, 14159) × 0, 5625 × 1
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= 1,767. Lub qhov muaj qhov ntim 1,767 ib3.
Kauj Ruam 4. Rau tus kheej, siv qhov sib npaug 4/3 pi × R3.
Txhawm rau suav qhov ntim ntawm ib puag ncig hauv cubic yards, txhua yam koj yuav tsum paub yog nws lub vojvoog, uas yog qhov deb ntawm nruab nrab ntawm lub voj voog mus rau nws sab nrauv sab hauv yoj. Tom qab ntawd, muab tus lej no los ntawm peb (sib npaug ntawm nws tus kheej ob zaug), thiab muab cov txiaj ntsig los ntawm 4/3 pi kom tau txais qhov ntim ntawm tus kheej hauv qhov cub.
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Piv txwv li, cia peb hais tias peb xav nrhiav lub ntim ntawm lub zais pa cua kheej kheej. Qhov kev ncua deb ntawm lub zais pa kub yog 10 yards. Faib 10 los ntawm ob qho kom tau txais lub voos kheej -kheej ntawm lub zais pa, uas yog 5 yards. Tom qab ntawd, tsuas yog ntsaws tus lej no rau tus nqi "R" rau hauv qhov sib npaug zoo li no:
- 4/3 Pi × (5)3
- = 4/3 (3, 14159) × 125
- = 4, 189 × 125
- = 523, 6. Qhov ntim ntawm lub zais pa yog 523, 6 yd xov3.
Kauj Ruam 5. Rau lub khob hliav qab, siv 1/3 pi × R. equation2 × T.
Qhov ntim ntawm lub khob hliav qab yog 1/3 ntim ntawm lub tog raj kheej uas muaj qhov siab tib yam thiab lub vojvoog zoo ib yam li lub khob hliav qab. Tsuas yog nrhiav qhov siab thiab lub vojvoog ntawm lub khob hliav qab (hauv vaj), tom qab ntawd daws qhov sib npaug zoo li nrhiav qhov ntim ntawm lub tog raj kheej. Muab cov txiaj ntsig los ntawm 1/3 kom tau txais lub ntim ntawm koj lub khob hliav qab.
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Piv txwv li, cia peb hais tias peb xav nrhiav qhov ntim ntawm lub khob dej khov. Cov khob khov nab kuab me me thiab muaj lub vojvoog ntawm 1 nti thiab qhov siab ntawm 5 ntiv. Hloov mus rau qhov chaw, lub vojvoog yog 0.028 yards thiab qhov siab yog 0.139 yards. Daws raws li hauv qab no:
- 1/3 (3, 14159) × 0, 0282 × 0, 139
- = 1/3 (3, 14159) × 0, 000784 × 0, 139
- = 1/3 × 0, 000342
- = 1, 141-4. Qhov ntim ntawm lub khob mis nyuj khov yog 1, 141-4.
Kauj Ruam 6. Rau qhov tsis xwm yeem, sim siv qee qhov sib npaug
Thaum ua haujlwm ntawm daim duab peb sab uas tsis muaj qhov sib npaug ruaj khov kom pom nws ntim, sim faib cov duab ua ob peb lub duab uas nws ntim (hauv cubic yards) yooj yim dua los suav. Tom qab ntawd, nrhiav qhov ntim ntawm cov duab ntawm qhov chaw sib cais. Ntxiv qhov ntim ntawm cov duab los nrhiav qhov ntim kawg.
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Piv txwv, peb xav nrhiav qhov ntim ntawm lub tsev me me ntawm cov nplej. Lub tsev no muaj lub cev tubular 12 yards siab thiab 1.5 yards ib puag ncig. Lub tsev pheeb suab kuj tseem muaj 1-yard-high conical ru. Los ntawm kev suav tag nrho ntawm lub ru tsev thiab lub cev ntawm lub tsev pheeb suab cais, peb tuaj yeem pom tag nrho cov ntim ntawm lub tsev:
- pib × R2 × H + 1/3 pi × R '2 × T '
- (3, 14159) × 1, 52 × 12 + 1/3 (3, 14159) × 1, 52 × 1
- = (3, 14159) × 2, 25 × 12 + 1/3 (3, 14159) × 2, 25 × 1
- = (3, 14159) × 27 + 1/3 (3, 14159) × 2, 25
- = 84, 822 + 2, 356
- = 87, 178. Lub tsev pheeb suab muaj ntim 87, 178 kub kub.
Txoj Kev 2 ntawm 2: Ceev Faj Kom Pom Cubic Yards ntawm Cov Pob Zeb Ua Ntej
Kauj Ruam 1. Nrhiav qhov loj ntawm thaj chaw pwm uas koj yuav nchuav cov qhob rau
Piv txwv li, thaum nchuav cov hlau los ua vaj huam sib luag, koj feem ntau nchuav cov pob zeb pov rau hauv cov pwm ob peb ntiv tes mus rau ko taw siab. Hauv qhov no, koj tsis tas yuav siv cov qauv nyuaj los nrhiav qhov ntim ntawm cov pob zeb pov tseg uas koj xav tau. Hloov chaw, siv cov neeg cog lus dag kom paub sai npaum li cas ntawm cov pob zeb nrum koj xav tau. Pib los ntawm kev nrhiav qhov loj ntawm thaj chaw pwm uas koj yuav nchuav cov qhob rau.
- Nco ntsoov - rau thaj tsam, peb ntsuas hauv ko taw, tsis yog yards, zoo li saum toj no.
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Raws li kev ceeb toom, rau cov duab plaub lossis duab plaub, thaj chaw no tuaj yeem pom los ntawm kev sib npaug Ntev × Dav.
Rau lub voj voog, tus qauv yog PiB × R2.
Rau cov duab nyuaj dua, saib ntau phau ntawv qhia los laij thaj tsam ntawm wikiHow.
Kauj Ruam 2. Paub cov tuab ntawm cov pob zeb uas koj xav tau
Nws yooj yim - tsuas yog ntsuas qhov tob ntawm cov pwm koj tab tom nchuav nrog cov qhob. Txij li thaum peb tab tom nchuav nws rau hauv cov pwm ntiav ntiav, peb tuaj yeem suav peb qhov kev ntsuas hauv cm lossis ntiv tes es tsis ntsuas lawv hauv qhov nyuaj m lossis ko taw.
Kauj Ruam 3. Faib koj qhov kev ntsuas hauv cheeb tsam los ntawm qhov sib npaug raws qhov tuab ntawm koj cov qhob nrum
Txhua yam koj yuav tsum tau ua los laij cov cubic yards ntawm koj cov qhob nrum yog faib koj thaj tsam ntsuas tus lej los ntawm tus lej ntawd. Yog tias koj cov hlau nrum yuav tsum tau nyias, tus lej no yuav loj dua. Yog tias koj cov hlau nrum yuav tsum tuab, tus lej no yuav tau me dua. Saib hauv qab no rau kev siv tuab tuab lossis txuas ntxiv mus rau theem tom ntej yog tias koj cov tuab tsis sib xws nrog ib qho ntawm cov hauv qab no:
- Yog tias lub pob zeb tuab 4 ntiv tes, faib thaj tsam los ntawm 81 txhawm rau xam cov cubic yards.
- Yog tias cov qhob tuab li 6 ntiv tes, faib thaj tsam li 54 los laij cov cubic yards.
- Yog tias lub pob zeb tuab li 8 ntiv tes, faib thaj tsam li 40 los laij cov cubic yards.
- Yog tias lub pob zeb tuab li 12 ntiv tes, faib thaj tsam li 27 los laij cov cubic yards.
Kauj Ruam 4. Txiav txim siab qhov tuab tuab txawv nrog cov qauv yooj yim
Yog tias koj qhov tuab tsis sib xws nrog cov piv txwv saum toj no, tsis txhob txhawj xeeb - nws yooj yim los nrhiav qhov ntim ntawm cov pob zeb pov tseg uas koj xav tau. Tsuas yog faib 324 los ntawm koj cov pob zeb ua tuab tuab (hauv nti). Tom qab ntawd, muab cov lus teb los ntawm koj qhov kev ntsuas hauv cheeb tsam kom pom tag nrho cubic yards ntawm cov qhob pov tseg.
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Piv txwv tias peb cov khoom pov tseg rau thaj tsam 10 ko taw × 10 ko taw yuav tsum yog tuab 3.5 ntiv. Hauv qhov no, peb yuav pom peb lub cubic yards raws li hauv qab no:
- 324/3, 5 = 92, 6
- 10 × 10 = 100
- 100/92, 6 = 1, 08. Peb xav tau 1,08 wb3 nrum qhob.
Kauj Ruam 5. Yuav ntau lub pob zeb pov tseg ntau tshaj qhov koj xav tau
Thaum nchuav cov pob zeb pov tseg, nws feem ntau yog lub tswv yim zoo los yuav ntau cov pob zeb ua pov thawj tsuas yog thaum koj ntsuas tsis raug. Tom qab tag nrho, cov pob zeb qhuav sib xyaw uas koj tsis tas siv tuaj yeem khaws cia thiab siv rau lwm qhov haujlwm. Txawm li cas los xij, yog tias koj tsis muaj cov khoom pov tseg txaus, koj yuav muaj teeb meem. Qee tus neeg yuav tsum tau khiav mus rau lub khw muag khoom kho vajtse ua ntej koj tuaj yeem pib nrog txoj haujlwm. Yog li, nco ntsoov yuav ntau lub pob zeb pov tseg, tshwj xeeb tshaj yog rau cov haujlwm loj.
