01 ea 05
Polygon ke eng?
Li-polygone ke tse peli tsa dimensional
Ka geometry, polygon e na le sebōpeho leha e le sefe sa bobeli :
- E entsoe ka mela e meraro kapa ho feta e otlolohileng
- E koetsoe - ha ho na lipolelo kapa likheo ka sebōpeho
- E na le lipale tse peli tse kopanyang likhutlong kapa lintlheng tseo li li bōpa
- E na le likarolo tse lekanang tsa mahlakoreng le lintlheng tsa ka hare (li-angles ka hare ho polygon)
(Bobeli ba bobeli bo bolela sephara - joaloka sekhechana sa pampiri)
Ke Segerike Sehle
Lebitso la polygon le tsoa ho mantsoe a mabeli a Segerike:
- poly - e bolelang "ba bangata"
- gon e bolelang "angle"
Libopeho Tseo ke Polygone
- Triangles
- Libaka
- Pentagons
- Li-Octagons
- Dodecagone - e kang chelete ea chelete ea Jamaican e 12 e setšoantšong ka holimo
Libopeho Tseo e seng Lipollogone
- Selikalikoe - hobane se entsoe ka lehlakoreng le khabisitsoeng ho e-na le mela e otlolohileng
- Lebokose kapa sesebelisoa - hobane se boemong bo tharo bo sebopeho ha bo na bobeli
02 ea 05
Ho reha li-polygone
Mabitso a Polygon
Mabitso a li-polygone ka 'ngoe a tsoa ho palo ea mahlakoreng le / kapa ka hare ho khanya sebopeho se nang le sona.
(Ka tsela, palo ea likarolo tse ka hare-e pota-pota ka sebopeho - e lokela ho lekana le palo ea mahlakoreng).
Mabitso a tloaelehileng a li-polygone tse ngata a na le sebaka sa Segerike sa palo ea li-angles tse khomaretsoeng lentsoe la Segerike bakeng sa angle (gon).
Kahoo, mabitso a tloaelehileng bakeng sa li-polygone tse tloaelehileng tse hlano le tse tšeletseng ke:
- penta (Segerike se bolelang li hlano) + gon = pentagon
- hexa (Segerike se bolelang se tšeletseng) + gon = hexagon
Likhetho
Ho na le, ho hlakile, ho fapana le leano lena la lebitso. Ka ho khetheha:
Triangle - e sebelisa Segerike sa Segerike , empa ho e-na le segone sa Segerike , tsela ea Selatine e sebelisoa. (Hangata li bitsoa trigone).
Quadrilateral - e tsoa lentsoeng la Latin prefix quadri - moelelo oa bone - o khomaretsoeng lentsoe lateral - e leng lentsoe le leng la Selatine le bolelang lehlakore.
Ka linako tse ling, polygon e nang le mahlakoreng a mane a bitsoa quadrangle kapa tetragon .
n-gons
Li-Polygone tse nang le mahlakore a fetang leshome le li-angles li teng, 'me tse ling li na le mabitso a tloaelehileng - a kang karolo ea 100 ectogon .
Leha ho le joalo, hangata ba fuoa lebitso le fanang ka mahlakoreng le mahlakoreng ho ea ka nako e tloaelehileng bakeng sa angle - gon .
Kahoo, polajoana e nang le mahlakore a 100 e atisa ho bitsoa 100-gon .
Li -n-gons tse ling le mabitso a tloaelehileng bakeng sa li-polygone tse nang le mahlakore a fetang leshome ke:
- 11-gon: Hendecagon
- 12-gon: Dodecagon
- 20-gon: Icosagon
- 50-gon: Pentecontagon
- 1000-gon: Chiliagon
- 1000000-gon: Megagon
Tekano ea Polygon
Theorytically, ha ho na moeli ho palo le mahlakoreng a polygon.
Ha boholo ba lintla tsa hare-hare tsa polygon li fokotseha 'me bolelele ba mahlakoreng a eona bo khutšoanyane, polygon e atamela selikalikoe - empa ha e fihle moo.
03 ea 05
Ho khetholla li-Polygone
Kamehla khahlanong le mefuta e sa tloaelehang ea Polygone
Hangata li - pembe li na le boholo bo lekanang 'me mahlakoreng' ohle a lekana ka bolelele.
Phorone e sa tloaelehang ke polygon e sa nang le maqhubu le mahlakore a lekanang a bolelele bo lekana.
Khotsofalo vs. Concave
Tsela ea bobeli ea ho khetholla li-polygone ke boholo ba li-angles tsa tsona tsa ka hare. Liqeto tsena tse peli li na le maikutlo a mabeli 'me li na le maikutlo a latelang:
- Li -polygone tse nahanang - ha li na maqhubu a ka hare ho feta 180 °;
- Li -polygone tsa Concave - bonyane lehlakoreng le leng la ka hare ho feta 180 °.
Lintho tse bonolo le li-polygone tse thata
Leha ho le joalo, tsela e 'ngoe ea ho khetholla li-polygone ke tsela eo melapo e etsang polygon e kenang ka eona.
- Melao ea li-polygone e bonolo e hokahanya kapa e phalla hanngoe feela - lintlheng;
- Melao ea polygone e rarahaneng e kopana hangata.
Mabitso a li-polygone tse rarahaneng ka linako tse ling a fapane le a li-polygone tse bonolo tse nang le mahlakore a lekanang.
Ka mohlala,
- Hexagon e nang le sebōpeho se tloaelehileng e na le polygon e lekaneng ka metso e tšeletseng
- Hex agram e bōpehileng joaloka linaleli ke polygon e metso e tšeletseng e nang le lihlopha tse tharo tse nang le likaroloana tse peli tse bontšang setšoantšo se ka holimo
04 ea 05
Nako ea Puso ea Angles ea ka hare
E le molao, nako le nako ha lehlakoreng le kenngoa ho polygon, tse kang:
- Ho tloha karolong e mararo ho isa ho quadrilateral (mahlakoreng a mararo ho isa ho a mane)
- Ho tloha pentagon ho ea hexagon (mahlakoreng a mahlano ho isa ho a tšeletseng)
e 'ngoe ea 180 ° e kenngoa ka kakaretso ea li-angles tsa hare.
Molao ona o ka ngoloa e le mokhoa o latelang:
(n - 2) × 180 °
moo n = palo ea mahlakoreng a polygon.
Kahoo kakaretso ea ka hare ho khanya ea hexagon e ka fumanoa ka ho sebelisa mokhoa ona:
(6 - 2) × 180 ° = 720 °
Ke liteko life tse ngata ho seo Polygon?
Mokhoa o ka holimo oa mahlakoreng a ka hare o tsoa ka ho arola polygon ho li-triangles, 'me palo ena e ka fumanoa ka palo:
n - 2
moo n hape e lekanang le palo ea mahlakoreng a polygon.
Kahoo, hexagon (mahlakoreng a tšeletseng) a ka aroloa likarolong tse tharo tse tharo (6 - 2) le dodecagon ka likotopo tse 10 (12 - 2).
Boholo ba Angle ea Lipolomone tse tloaelehileng
Bakeng sa li-polygone tse tloaelehileng (li khanya ka boholo bo lekanang le mahlakoreng a lekanang kaofela), boholo ba lehlakoreng le leng le le leng ka polygon li ka baloa ka ho arola palo ea likhato ka palo ea mahlakoreng.
Bakeng sa hexagon e nang le mahlakoreng a tšeletseng a mahlakoreng, ntlha ka 'ngoe ke:
720 ° ÷ 6 = 120 °
05 ea 05
Li-Polygone Tse Ling Tse Tsejoang haholo
Tumelo tse tharo
Litšepe tsa marulelo - li atisa ho ba lihlopha tse tharo. Ho itšetlehile ka bophara le marulelo a marulelong, sefate se ka 'na sa kenyelletsa li-trilateral le li-triangles tsa isosceles.
Ka lebaka la matla a bona a maholo, likotopo li boetse li sebelisoa ho hahoa marokho, liforeimi tsa libaesekele le Tora ea Eiffel.
Pentagon
Pentagon - ntlo-khōlō bakeng sa Lefapha la Tšireletso la United States - le nka lebitso la lona ho tloha sebopeho sa lona. E na le pentagon e mehla e mehlano.
Home Plate
E 'ngoe e tummeng ka mahlakore a mabeli a mahlakoreng a tloaelehileng a pentagon ke home plate ka baseball ea diamant.
The Fake Pentagon
Sebaka se seholo sa mabenkele haufi le Shanghai, Chaena e hahiloe ka sebōpeho sa pentagon e tloaelehileng, 'me ka linako tse ling e bitsoa Fake Pentagon hobane e tšoana le ea pele.
Snowflakes
Ntho e 'ngoe le e' ngoe ea lehloa e qala joaloka leqhoa le lekanang, empa mocheso le litekanyo tsa mongobo li eketsa makala le li-tendrils e le hore e mong le e mong a qetelle a sheba se fapaneng ..
Linotši le Maqeba
Li-hexagone tsa tlhaho li kenyeletsa le linotši moo sele e 'ngoe le e' ngoe e nang le khekhe ea linotsi eo linotši li hahang ho e boloka ka mahe a linotši.
Lihlapa tsa pampiri li boetse li na le lisele tse lekanang moo li hōlisang bana ba tsona.
Giant's Causeway
Li-hexagone li fumanoa le Giant's Causeway e ka leboea-bochabela Ireland.
Ke lejoe la tlhaho le entsoeng ka litšiea tse ka bang 40 000 tse kenyelletsang basalt tse ileng tsa bōptjoa e le hore seretse se chesang sa khale se foqohe butle.
The Octagon
Octagon e tšoantšetsoang ka holimo - lebitso le fanoeng ka lesale kapa ntloana e sebelisoang lipapaling tsa UFC (Ultimate Fighting Championship) - e nka lebitso la sona ho tloha sebopeho sa sona. Ke ectagon e tloaelehileng ea octagon.
Emisa Matšoao
Letšoao la ho emisa - e 'ngoe ea litsela tse tsebahalang haholo tsa sephethephethe - ke e' ngoe ea octagon e nang le mahlakoreng a robeli.
Le hoja 'mala le mantsoe kapa matšoao ho ponts'o a ka fapana, sebopeho sa octagonal bakeng sa letšoao la ho emisa se sebelisoa linaheng tse ngata ho pota lefatše.