Ukudlala nomntwana izibalo ezihlukahlukene zejometri, uyamsiza ukuba athuthukise ukucabanga kwendawo kanye nomcabango. Uqala ukuqonda ukuthi yiziphi izindlela zesikwele, nxazonke, ze-cubic, ze-spherical, ne-rectangular futhi angazicabangela kalula ekhanda lakhe. Ngisho nabafundi esikoleni esifundweni se-geometry, othisha bahlale bebonisa ukuhlekwa kwezinto ezihlukahlukene, okubangela ukufana kangcono kwama-georethri nama-axioms. Futhi, mhlawumbe, igama eliyinkimbinkimbi kunzima kakhulu nelinzima ukubiza ingane "yi-parallelepiped". Ukuze ukwazi kahle lesi sibalo futhi uqonde amaphethini awo, siphakamisa ukuthi wena nomntanakho wenze i-parallelepiped ephepheni ngezandla zabo.
Ukwenza lokhu uzodinga:
- iphepha elimnyama (kodwa hhayi amakhadibhodi, ngaphandle kwalokho ingane izokwenza ubunzima obunzima kangaka), ungasebenzisa ishidi kusuka ku-albhamu;
- ipensela;
- umbusi;
- isisindo;
- glue i-PVA.
Ukuze uqonde ukuthi ungenza kanjani ukuphazamisa iphepha, udinga ukukhumbula ukuthi libukeka kanjani nokuthi liyini. Lesi sibalo sinesimo esingu-6, ngasinye esinekwele. Ngakho-ke, ukuskena kuzoba nama-rectangles angama-6 ahlangene kule ndege efanayo.
1. Kanye nanoma yisiphi isibalo se-volumetric, i-parallelepiped inebude, ububanzi nokuphakama. Kuvela ekubalukeni kwabo ukuthi ubukhulu bokusebenza buzoxhomeka. Chaza ubuningi obufunayo bese ubhala phansi.
2. Siyaqhubeka ukudweba umdwebo we-parallelepiped engxenyeni ephepheni. Khumbula ukuthi iphepha akufanele libe mncane kakhulu, lizothola kalula emanzini futhi liphihliwe, ngakho-ke isibalo asipheli ngisho nekhadibhodi elikhulu kakhulu ngeke ligobe kahle futhi lizogoba.
3. Dweba umugqa olinganiselwe, ubude obulingana nesamba sobubanzi nokuphakama, wanda ngamabili. Khona-ke kusukela ekupheleni komugqa ngamunye sinciphisa i-perpendicular elingana nobude be-parallelogram ebhekwayo. Phakathi kwabo udweba umugqa ohambisana nendawo yokuqala.
4. Manje, kusukela ekhoneni elingakwesokudla, sihlela ukuphakama kwe-parallelogram, bese ububanzi. Khona-ke ukuphakama, futhi futhi ububanzi. Kusukela kumaphuzu atholakalayo, dweba imigqa ehamba phambili ehlangothini oluphambene, oluzolingana nobude be-parallelogram. Ngakho sinezinhlangothi ezine zobuso. Kunokusele okungaphezulu okungu-2.
5. Ngaphezulu kwesiqeshana sesibili ngakwesokudla, sengeza ngaphezulu kokubili ngaphezulu nangaphezulu. Kulesi simo, kusukela uphawu lwesibili ngakwesokudla, esenza esiteji sesi-4, udwebe phezulu phezulu olingana nokuphakama kwesibalo. Phinda okufanayo kusuka kumaki wesibili. Sixhuma ama-perpendiculars ngengxenye elingana nobubanzi be-parallelogram. Ngendlela efanayo, sakha umugqa wangaphansi ohlangothini oluphambene.
6. Ukuze wenze kube lula ukuhlanganisa i-parallelepiped ephepheni, engeza amanye "amaphiko" emdwebeni, njengoba kuboniswe kulo mfanekiso. Ububanzi bawo kufanele bube ngu-1.5 cm. Kubalulekile futhi ukuba wenze amakhondi angama-45 (degrees), ukuze kuthi uma zihlanganiswe azibuke ngaphandle.
Ngakho-ke, ukuskena kwepalliphepiped kwephepha sekulungele. Kubalulekile ukuthi yonke imininingwane yomdwebo ifinyelele futhi ilinganiselwe, ngaphandle kwalokho isibalo asihlangani ndawonye ngokulinganayo futhi sizoba ijika.
7. Sika umshini wokwenza umsebenzi bese uyibopha kuyo yonke imigqa ukuze izinhlangothi zethu zithinte, futhi ama-rectangles aphezulu naphezulu abe "ngezansi" futhi "ikhava" yalesi sibalo.
8. Hlanganisa "amaphiko" engeziwe ngeglue bese uqoqa i-parallelepiped ngokuzigcwalisa ngaphakathi. Ake silinde kuze kube khona i-glue eyomile.
Uma uye wazi kahle ukukhiqizwa kwalesi sibalo, ungaqhubeka ukuqoqa i-parallelepiped ephepheni ephepheni, emaphethelweni ayo amadayimane angenalutho.
- Ngokufaniswa kwesibalo sokuqala, dweba umdwebo, njengoba kuboniswe kulo mfanekiso. Njengoba ubona, bonke ubuso be-parallelepiped abathandekayo bafana futhi zonke izinhlangothi zamadayimane zilingana.
- Engeza esithombeni amaphiko engeziwe engeziwe.
- Ngenisa ngobumnene isibalo.
I-parallelepiped - isibalo se-geometric esilula, ukuqonda ukuthi ungaya kwabanye-ukudala ipiramidi yamakhadibhodi noma iphepha, isibonelo, icosahedron .