Lokaci-lokaci, muna bukatar sanin yankin da girman ɗakin. Waɗannan bayanan na iya buƙatar ƙirar dumama da samun iska, lokacin da siyan kayan gini da sauran yanayi. Hakanan lokaci-lokaci yana buƙatar sanin ganuwar bangon. Duk wannan bayanan ana lissafta a sauƙaƙe, amma zai yi aiki da matsala - auna duk abubuwan da ake buƙata. A kan yadda za a lissafta yankin ɗakin da ganuwar, girman dakin kuma za a tattauna gaba.
Sau da yawa ya zama dole a lissafta gefen dakin, ƙarar ta
Filin daki a murabba'in mita
Abu ne mai sauki ka yi la'akari, kawai ana buƙata ne kawai ka tuna da mafi kyawun tsari da kuma aiwatar da ma'aunai. Don wannan zamu buƙaci:- Rounte. Zai fi kyau - tare da mai riƙe da kaya, amma wanda aka saba zai dace.
- Takarda da alkalami ko alkalami.
- Kalkuleta (ko kirga a cikin shafi ko a zuciya).
Saitin kayan aiki mai sauki ne, akwai a cikin kowace gona. Abu ne mai sauki ka auna tare da mataimaki, amma zaka iya jimre wa kanka.
Da farko kuna buƙatar auna tsawon ganuwar. A bu mai kyau a yi shi tare da bangon, amma idan dukansu an tilasta musu kayan daki, zaku iya aiwatar da ma'auni da kuma tsakiyar. Kawai a wannan yanayin, bi kan tef na bakin ciki kwance tare da bango, kuma ba mai lalacewa ba - kuskuren ƙima zai zama ƙasa.
Daki mai dari
Idan ɗakin shine tsari mai kyau, ba tare da sassan da ke jujjuyawa ba, lissafa yankin ɗakin kawai. Auna tsawon da nisa, rubuta a kan takarda. Rubuta lambobi a cikin mita, bayan wakafi saka santimita. Misali, tsawon shine 4.35 m (430 cm), girman shine 3.25 m (325 cm).
Yadda ake lissafta filin
An samo lambobi a takaice, muna samun dakin a murabba'in mita. Idan muka juya ga misalinmu, to, wadannan zasu kasance: 4.35 m * 3.25 m = mita 14,1375. m. A cikin wannan girman, yawanci lambobi biyu bayan an bar semicolon, yana nufin ɗan lokaci. Jimlar, murabba'in lissafi na dakin shine mita 14,14.
Mataki na a kan batun: kauto su yi da kanka: daga allon, twigs, rassan
Sanya sifar mara daidaituwa
Idan kana buƙatar lissafin yankin da ba daidai ba, an karye cikin lambobi masu sauki - murabba'ai, rectangles. Sannan suna auna duk girman da suka wajaba, suna haifar da ƙididdigar gwargwadon sanannun dabarun (akwai kadan ƙananan a cikin tebur).
Kafin lissafta ɗakin ɗakin, shima yana aiwatar da canje-canje. Kawai a wannan yanayin, lambobin ba zasu zama biyu ba, da hudu: tsawon tsayi da fadin girman za a ƙara. An yi la'akari da girman guda biyu daban.
Misali guda yana cikin hoto. Tun da duka biyun murabba'i ne, ana ɗaukar yankin a cikin tsari iri ɗaya: Tsawon yana ƙaruwa da nisa. Yakamata a ɗauka lambar ko ƙara zuwa girman ɗakin - dangane da tsarin sanyi.
Murabba'i mai square
Bari mu nuna kan wannan misalin yadda za a lissafta dakin tare da maigila (wanda aka nuna a hoto a sama):
- Munyi la'akari da murabba'i ba tare da nuna kai ba: 3.6 m * 8.5 m = 30.6 Mita. m.
- Munyi la'akari da girman bangaren mai zaman kansa: 3.25 m * 0.8 m = murabba'in murabba'in 2.6. m.
- Mun ninka adadin biyu: murabba'in mita 30.6. m. + murabba'in mita 2.6. m. = 33.2 KV. m.
Hakanan akwai ɗakuna tare da ganuwar da aka dafa. A wannan yanayin, muna rarrabe shi don haka rectangles da alwatika ana samun su (kamar yadda a cikin adadi a ƙasa). Kamar yadda kake gani, don shari'ar da aka bayar, kuna buƙatar samun masu girma dabam. Zai yuwu a fasa daban, sanya layi a tsaye, ba layin kwance ba. Ba kome. Za'a buƙaci saiti mai sauƙi na adadi, kuma hanyar rabuwar su tana da sharaɗi.
Yadda ake lissafta dakin ba daidai ba
A wannan yanayin, tsari na lissafi shine:
- Munyi la'akari da babban sashi na rectangular: 6.4 m * 1.4 m = 8.96 murabba'in mita. m. Idan ya zagaye, muna samun 9, 0 sq.m.
- Yi la'akari da karamin murabba'i mai dari: 2.7 m * 1.9 m = 5.13 kV. m. Rounding, muna samun muraba'in mita 5.1. m.
- Munyi la'akari da yankin na alwatika. Tunda yana tare da kusurwa madaidaiciya, daidai yake da rabin yankin murabba'i mai kusurwa tare da iri ɗaya. (1.3 m * 1.9 m) / 2 = murabba'in mita 1.235. m. Bayan zagaye, muna samun murabba'in 1.2. m.
- Yanzu dukkanmu muna ninka don nemo jimlar ɗakin: 9.0 + 5,1 + 1.2 = 15.3 murabba'in mita. m.
Mataki na kan batun: Yadda za a shirya sandar a kanka
Tsarin wuraren zama na iya zama da yawa, amma babban ka'idar da kuka fahimta: Muna rarrabe kan sauƙaƙan adadi, to muna lissafin duk wani yanki na kowane yanki, to, mu ƙara komai.
Tsari don yin lissafin yankin da kuma kewaye da siffofin geometric
Wani muhimmin bayanin kula: ɗakin, bene da yanki mai rufi iri ɗaya ne. Bambance-bambance na iya zama idan akwai wasu semi-gonar da basa isa rufin. Sannan quaduruwan wadannan abubuwan an cire su daga jimlar quadure. A sakamakon haka, muna samun filin bene.
Yadda ake yin lissafin murabba'in bango
Sakamakon bangon ganuwar gonar galibi ana buƙatar buƙatar kayan gini - fuskar bangon waya, filasik, da sauransu. Don wannan lissafin, ana buƙatar ƙarin ma'auni. Faɗin da tsawon ɗakin za a buƙata:
- tsayin tsinkaye;
- Tsawo da nisa na ƙofar;
- Tsawo da nisa na buɗewar taga.
Duk ma'aunai - a cikin mita, kamar yadda ake kuma ɗaukar murabba'in bango don auna a murabba'in murabba'in.
Ana amfani da mafi dacewa ga shirin.
Tunda bangon ne rectangular, sannan yanki ana la'akari da yankin don murabba'i mai dari: tsayi da aka ninka shi. Haka kuma, muna lissafin girman windows da ƙofofin kofa, sun rage girman su. Misali, lissafta yankin bangon da aka nuna a cikin zane a sama.
- Bango da ƙofar:
- 2.5 m * 5.6 m = 14 kV 14. m. - Total yankin na dogon bango
- Nawa ne ƙofar ƙofar: 2.1 m * 0.9 m = 1.89 sq.m.
- Bangon ba tare da yin la'akari da ƙofar ƙofar ba - 14 sq.m - 1.89 murabba'in mita. m = murabba'in mita 12,11. M.
- Bango da taga:
- Quadari na ƙananan bangon: 2.5 m * 3.2 m = 8 sq.m.
- Nawa ne ke ɗaukar taga: 1.3 m * 1.42 m = 1.846 KV. m, zagaye, muna samun 1.75 sq.m.
- Bango ba tare da taga ba: 8 murabba'in mita. M - 1.75 sq. M = 6.25 sq.m.
Nemo jimlar yanki na bangon ba zai zama da wahala ba. Mun ninka lambobi huɗu: 14 sq.m + 12.11 sq.m. + 8 sq.m + 6.25 sq.m. = 40.36 murabba'in mita. m.
Mataki na kan batun: Zabi wani gado mai kyau ga yara
Kar girma
Dabara don lissafin yawan dakin
Don wasu lissafi, ana buƙatar girman ɗakin. A wannan yanayin, dabi'u uku suna ninka: nisa, tsawon tsayi da tsayi. Ana auna wannan ƙimar cikin mita na cubic (mita mai siffar sukari), wanda ake kira ƙarin cubature. Misali, yi amfani da bayanai daga sakin layi na baya:
- Dogon - 5.6 m;
- nisa - 3.2 m;
- Tsawo - 2.5 m.
Idan kun ninka, muna samun: 5.6 m * 3.2 m * 2.5 m = 44.8 m3. Don haka, girman ɗakin shine 44.8 CUBE.