Beddelka Mitirka ilaa Cagta: Aaladda Saxda ah ee Online-ka ah
Boggan wuxuu kuu ogolaanayaa inaad ku qorto tiro mitir ah oo aad hesho cagaha u dhigma. Aaladdu waxay shaqaysaa isbeddelka saxda ah ee u dhexeeya mitirka (m) iyo cagta (ft) adoo adeegsanaya qodobka caalamiga ah ee la aqbalay: 1 ft = 0.3048 m si sax ah. Qodobka isbeddelka ee ka soo horjeeda waa 1 m = 3.28083989501 ft. Haddii aad isticmaasho aaladdan, kuma qasbanid inaad xafido tirooyinka dhaadheer ama aad sameyso xisaab gacmeed.
Maxaa ka duwan boggan?
Kala duwanaanshiyaha ugu weyn ee boggan waa qodobka isbeddelka uu isticmaalo. Wuxuu ku salaysan yahay cagta caalamiga ah (international foot) oo laga soo qaatay injiga: 1 in = 25.4 mm si sax ah ilaa 1959. Cagtu waxay u dhigmaa 12 inji, sidaa darteed 1 ft = 12 × 25.4 mm = 304.8 mm = 0.3048 m.
Bogagga walaalaha ah ee goobtan (sida feet-to-meters, yards-to-meters) waxay isticmaalaan qodobbo isbeddel oo kala duwan. Tusaale ahaan, beddelka cagaha ilaa mitirka wuxuu u baahan yahay in la qaybiyo 3.28083989501, halka beddelka mitirka ilaa cagaha uu yahay isku dhufasho. Jihooyinka ayaa muhiim ah: ma aha isku mid inaad mitirka u beddesho cagaha iyo inaad cagaha u beddesho mitirka. Tani waa sababta boggan u gaar ah.
Sidoo kale, cagta loo isticmaalo halkan waa cagta caalamiga ah, ma aha cagta sahanka ee Maraykanka (U.S. survey foot) oo ah 1 ft = 1200/3937 m, taas oo ah 0.3048006096... m. Kala duwanaanshahan yari wuxuu muhiim u yahay qaar ka mid ah xisaabaadka injineeriyada, laakiin aaladdan waxay isticmaashaa kaliya cagta caalamiga ah.
Gelida iyo Soo-saarka
Gelida: Waxaad gelin kartaa lambar kasta oo mitir ah: tiro dhammays tiran, jajab tobanle, ama xisaabta sayniska (sida 1.5e2). Aaladdu waxay aqbashaa tirooyinka taban sidoo kale.
Soo-saarka: Natiijadu waxay tahay dhererka u dhigma cagaha (ft), oo la xisaabiyay iyadoo gelinta lagu dhuftey 3.28083989501. Natiijada waxaa la soo bandhigaa tiro jajab tobanle oo macquul ah (badanaa 4-6 jajab tobanle), iyo haddii ay habboon tahay, jajab dhamaadka ah.
Xeerarka cidhifka:
- Lambarka taban waa la aqbalaa oo waa la beddelaa (tusaale: –5 m waxay noqonaysaa –16.4042 ft).
- Eber wuxuu soo saaraa si sax ah 0 ft.
- Tirooyin aad u weyn ama aad u yar waa la maareeyaa iyadoo la ilaalinayo saxnimada tirada.
- Haddii wax laga qoro oo aan lambar ahayn, aaladdu waxay muujisaa qalad oo waxay weydiisaa in la qoro lambar.
Tusaalooyin Shaqo oo Dhab ah
Haddii aad rabto inaad fahamto sida aaladdu u shaqeyso, tusaalooyinka soo socda ayaa kaa caawinaya.
| Gelida (m) | Xisaabinta | Natiijada (ft) |
|---|---|---|
| 1.8 | 1.8 × 3.28083989501 | 5.9055 |
| 5 | 5 × 3.28083989501 | 16.4042 |
| 100 | 100 × 3.28083989501 | 328.084 |
| 0.3048 | 0.3048 × 3.28083989501 | 1.0000 |
| –2.5 | –2.5 × 3.28083989501 | –8.2021 |
Tusaale 1: Dhererka qofka. Qof dhererkiisu yahay 1.8 m, marka loo beddelo cagaha waa 5.9055 ft. Badanaa waxaa loo soo bandhigaa sidii 5 ft 10.9 in (maadaama 0.9055 ft × 12 in/ft = 10.866 in). Aaladdu waxay siinaysaa jajab tobanle, laakiin waxaad si fudud uga beddeli kartaa inji.
Tusaale 2: Qol dhererkiisu yahay 5 m. Cagaha: 16.4042 ft. Qiyaasta qurxinta guryaha waxay inta badan u baahan tahay saxnimada ilaa 0.1 ft, marka 16.4 ft ayaa ku filan.
Tusaale 3: Waddo orod oo 100 m ah (sida orodka Olympics-ka). Cagaha: 328.084 ft. Xisaabaadka ciyaaraha, saxnimada ilaa 0.01 ft ayaa muhiim ah.
Tusaale 4: Haddii aad isticmaasho cagta lafteeda sida gelinta: 0.3048 m = 1 ft si sax ah. Tani waxay muujinaysaa sida qodobka isbeddelku u yahay mid saafi ah oo aan wareerin.
Taariikhda Cagta iyo Heerarka
Mitirka waxaa la qeexay 1799 sida 1/10,000,000 ee masaafada u dhaxaysa dhulbaraha iyo cidhifka woqooyiga. Cagta, dhanka kale, waxay leedahay taariikh dheer oo ku dhex jirta nidaamyada Ingiriisiga iyo Maraykanka. Kahor 1959, waddamada kala duwani waxay isticmaaleen cago kala duwan oo si yar u kala duwan. Tusaale ahaan, cagta Ingiriisiga waxay ahayd 0.30479997 m, halka cagta Maraykanku ay ahayd 0.30480061 m.
Sanadkii 1959, wadamada Ingiriisiga iyo Maraykanku waxay ku heshiiyeen in cagta la qeexo si sax ah iyadoo la adeegsanayo injiga: 1 in = 25.4 mm. Tan macneheedu waa 1 ft = 12 × 25.4 mm = 304.8 mm = 0.3048 m si sax ah. Heshiiskan ayaa la yiraahdo "International Yard and Pound Agreement". Qodobka isbeddelka ee aaladdu isticmaasho waa ka soo horjeedka 0.3048: 1/0.3048 = 3.280839895012... Laakin aaladdu waxay isticmaashaa qodobka la soo koobay 3.28083989501, kaas oo ku filan inta badan xisaabaadka.
Waa muhiim in la ogaado in cagta sahanka Maraykanka (survey foot) weli laga isticmaalo xaaladaha qaarkood, sida sawirada dhulka ee dowladda. Cagtaasi waxay ku salaysan tahay mitirka lagu qeexay 1893, iyadoo 1 ft = 1200/3937 m. Kala duwanaanshuhu waa qiyaastii 2 ppm (part per million). Aaladdan kuma tixgeliso cagta sahanka, laakiin inta badan isticmaalayaasha waxay u baahan yihiin cagta caalamiga ah.
Xeerarka Cidhifka iyo Khasnadda
Aaladdu waxay u shaqeysaa si looga fogaado qaladaadka isticmaale. Halkan waxaa ah xeerarka muhiimka ah:
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Lambarka taban: Waa la aqbalaa oo waa la beddelaa. Tusaale: gelinta –5 m waxay soo saartaa –16.4042 ft. Tani waxay ku habboon tahay xaaladaha ay dhererka jihada hoose ay muhiim tahay, sida xisaabaadka joomatari ama fiisigiska.
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Eber: 0 m = 0 ft si sax ah. Qodobka isbeddelku wuxuu ku dhuftey eber, natiijadu waa eber. Fudud.
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Tirooyin aad u weyn: Aaladdu waxay awood u leedahay inay qabato tirooyin ilaa heerka 10^15. Tusaale: 1,000,000 m waxay noqonaysaa 3,280,839.89501 ft. Natiijada waxaa laga yaabaa inay muujiso tiro jajab tobanle oo dheer, laakiin aaladdu waxay soo koobtaa si macquul ah.
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Tirooyin aad u yar: Tusaale 0.0001 m waxay noqonaysaa 0.000328084 ft. Haddii natiijadu aad u yar tahay, aaladdu waxay isticmaali kartaa xisaabta sayniska.
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Qoraal aan lambar ahayn: Haddii aad qorto "toddoba" ama "5 meters", aaladdu waxay soo saari doontaa fariin qalad ah oo ku leh "Fadlan geli lambar kaliya". Tani waxay ka hortagtaa qaladaadka marka la gelinayo.
FAQ (Su'aalo Inta Badan La Weydiiyo)
Su'aal: Aaladdu ma sax baa? Jawaab: Haa, aaladdu waxay isticmaashaa qodobka 3.28083989501, kaas oo laga soo qaatay heshiiska caalamiga ah ee 1959. Natiijadu waxay sax tahay ilaa 10 jajab tobanle.
Su'aal: Maxaa dhacaya haddii aan geliyo tiro taban? Jawaab: Aaladdu waxay si caadi ah u beddeshaa lambarka taban. Tusaale: –10 m = –32.8084 ft. Waxaa laga yaabaa in loo isticmaalo xisaabaadka dhismaha ama injineeriyada.
Su'aal: Kala duwanaanshaha u dhexeeya aaladdan iyo bogga feet-to-meters waa maxay? Jawaab: Bogga feet-to-meters wuxuu isticmaalaa qaybinta 3.28083989501, halka boggaan uu isticmaalo isku dhufashada. Labaduba waxay isku qodobka ku salaysan yihiin, laakiin jihooyinka ayaa kala duwan. Ma aha isku mid.
Su'aal: Maxaa sabab u ah in qodobka isbeddelku uu yahay 3.28083989501 oo aan ahayn 3.281? Jawaab: 3.281 waa qiyaas. Aaladdu waxay u baahan tahay saxnimada si ay uga faa'iideeyaan xisaabaadka injineeriyada iyo sayniska. Haddii aad isticmaasho 3.281, waxaa jiri doona qalad ku saabsan 0.02 ft mitir kasta. Tusaale: 100 m × 3.281 = 328.1 ft, halka natiijada saxda ahi ay tahay 328.084 ft. Kala duwanaanshaha 0.016 ft ayaa muhiim u ah shaqooyinka qaarkood.
Su'aal: Aaladdu ma qaaddaa cagta sahanka Maraykanka? Jawaab: Maya, aaladdu waxay isticmaashaa cagta caalamiga ah (international foot). Haddii aad u baahan tahay cagta sahanka, waa inaad isticmaashaa qodob kala duwan: 1 m = 3.28083333333 ft. Kala duwanaanshuhu waa aad u yar, laakiin muhiim u ah sawirada dhulka.
Su'aal: Sideen u beddeli karaa cagaha ilaa inji? Jawaab: Aaladdu waxay kaliya ku siinaysaa cagaha iyagoo jajab tobanle ah. Si aad u hesho inji, ku dhufo qaybta jajabka tobanlaha 12. Tusaale: 5.9055 ft, qaybta jajabka tobanlaha waa 0.9055, marka 0.9055 × 12 = 10.866 in. Marka 1.8 m = 5 ft 10.9 in.