Tetrahedron shine mafi sauki daga polygons. Ya ƙunshi fuskoki huɗu, kowane ɗayan su ne alƙali mai daidaituwa, tare da kowane ɓangare suna haɗe da juna ta hanyar fuska ɗaya. Yayin da kake nazarin dukiyar da wannan siffar siffa mai girma uku ya kasance mai tsabta, zai fi dacewa don yin samfurin litrahedron na takarda.
Yadda za a haɗa man fetur daga takarda?
Don gina gilashi mai sauƙi daga takarda, muna buƙatar:
- takarda na ainihi (m, zaka iya amfani da kwali);
- Hanyar sarrafawa;
- Mai mulki;
- almakashi;
- m;
- kaddamar da takarda, zane.
Ayyukan aiki
- Za mu fara aiki a kan tetrahedron ta hanyar zana hoton takarda. Idan an tsara adadi daga takarda mai tushe, zaku iya zana zane a kai tsaye.
- Mun zana layin da ke fuskantar fuska. Daga iyakoki biyu, zamu kwance kusakoki na 60 ⁰, kuma ta hanyar da aka samu, zana hanyoyi madaidaiciya har sai sun tsaida. Muna da matattun alwashi.
- Kusa a kowane bangare na alwashi muke gina wannan. Daga kowane karshen mun sake jinkirta 60 ⁰ kuma haɗi. A sakamakon haka, ya kamata ka sami makirci wanda ya ƙunshi nau'i hudu na ƙa'idodi.
- Domin a sake yin gyaran kafa tare da samun karfin taya, to ya kamata a samu izinin 1 cm a bangarorin uku na daban daban. Sakamakon wannan zane yake.
- Yanke duba kuma tanƙwara shi tare da dukkanin layi, bari mu tanƙwasa izinin shiga, idan ya cancanta, ku yanke sasanninta. Mun haɗa su tare da manne kuma danna su zuwa cikin ciki na fuskoki, tare da layin layin tsakanin gefen da kyauta tare da gefen tarkon mai kyauta.
Wasu ƙarin shawarwari:
- idan takarda ya yi yawa, to, a wurare na folds, ya kamata ka riƙe wani abu mai mahimmanci, misali, gefen mai mulki;
- domin samun samfurori masu launin launin fata, zaka iya fentin fuskoki ko yin fice akan takardun launin launi.
Yaya za a yi takalma daga takarda ba tare da gluing ba?
Mun kawo hankalin ku a matsayin babban darajar da aka fada mana yadda za a tattara 6 tarin kaya daga takarda a cikin guda guda daya ta hanyar amfani da fasahar inigami.
Muna buƙatar:
- 5 nau'i-nau'i na zanen gado na takarda na launi daban-daban;
- almakashi.
Ayyukan aiki
- Kowane takardar takarda an raba shi zuwa kashi uku daidai, yanke kuma samo makamai wanda raboccen rabo shine 1 zuwa 3. A sakamakon haka, muna samo asali 30, daga abin da za mu ƙara ƙaddamar.
- Mun sanya tsiri a gaban mu fuskantar fuska, yana shimfiɗa a fili. Muna ninka a rabi, ya buɗe kuma tanƙwara zuwa tsakiyar gefen.
- A saman gefen dama, tanƙwara kusurwa don yin kibiya, motsa shi 2-3 cm daga gefen.
- Hakazalika, tanƙwara gefen hagu (hoto a matsayin takarda don yin tudu 3).
- Mun tanƙwara kusurwar dama na kananan triangle, wanda ya fito daga sakamakon aiki na baya. Saboda haka, gefen gefen gefe zai kasance a daidai wannan kusurwa.
- Ƙara fadada sakamakon.
- Ƙara girma a kusurwar hagu da kuma a kan layin layi na riga an rufe shi zuwa kusurwa kamar yadda aka nuna a hoto.
- A kusurwar dama, tanƙwara gefen ƙasa zuwa ƙasa domin ya haɗu tare da ninka da aka yi yayin aiki # 3.
- Ƙunƙashin ƙananan baya an rufe shi zuwa dama ta yin amfani da ninka da aka yi a sakamakon aiki na lamba 3.
- Ayyukan da suka gabata an maimaita daga sauran ƙarshen tsiri, amma saboda ƙananan ƙwayoyin suna bayyana akan iyakar layi na tsiri.
- Sakamakon tsiri ne aka raba shi cikin rabi tare da tsawon kuma bari barci ya kwance a hankali. Daidai ƙididdigar bayaninwa zai bayyana a bayyane, lokacin da aka kammala samfurin. Ra'ayin ya shirya, yanzu muna yin 29 fiye da haka.
- An juyar da haɗin don haka a yayin taronta da waje tana bayyane. Muna haɗin hanyoyin biyu ta hanyar shigar da shafin a cikin aljihun da aka kafa ta ƙananan ƙananan ciki.
- Dole ne haɗin haɗi ya zama daidai da 60 ⁰, a karkashin abin da wasu hanyoyi zasu shiga (hoto kamar yin takarda takaddama 13).
- Mun ƙara haɗin na uku zuwa na biyu, kuma na biyu haɗin zuwa na farko. An samo ƙarshen adadi, a saman wanda an haɗa dukkan haɗin da ke cikin uku.
- Bugu da ƙari, ƙara ƙarin haɗin hanyoyi uku. Fitrahedron na farko ya shirya.
- Harsunan siffar da aka ƙayyade bazai kasance daidai ba, don haka don daidaitaccen tsari, wanda ya kamata ya bar bude ɓangaren kowane ɓangare na tetrahedra.
- Dole ne a haɗa haɗin haɗi tsakanin su da juna don haɗin ɗayan ya wuce ta rami a cikin ɗayan.
- Uku tetrahedra da aka haɗa tare.
- Four tetrahedra haɗa tare.
- An shirya ɗakoki biyar na tetrahedrons.
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Idan ka biye da tetrahedron, zaka iya ci gaba da yin prism , icosahedron , paralllepiped da wasu siffofi na lissafi daga takarda .