Tsela e Bonolo ea ho Bala Perimithara ea Sekwere
Ho bala perimeter ea sekwere ke mohopolo oa motheo oa lipalo o bohlokoa ho ithuta, haholo-holo bakeng sa baithuti ba sekolo sa mathomo le sa mahareng. Khopolo ena e qala ka kutloisiso e bonolo ea libopeho tsa jeometri ebe e tsoela pele ho ea lits'ebetsong tse rarahaneng haholoanyane bophelong ba letsatsi le letsatsi. Sengoloa sena se tla tšohla mokhoa o bonolo oa ho bala perimeter ea sekwere, ho fana ka tlhaloso e felletseng le mehlala e sebetsang bakeng sa kutloisiso e bonolo.
Tlhaloso ea Sekwere
Sekwere ke sebopeho sa mahlakore a mabedi se nang le mahlakore a mane a bolelele bo lekanang le dikhutlo tse nne tsa tekanyo e lekanang, e nngwe le e nngwe e lekanya di-degree tse 90. Hobane mahlakore ohle a sekwere a bolelele bo lekanang, ho bala perimeter ya sona ho bonolo ebile ho otlolohile.
Foromo ea Perimithara ea Sekwere
Ho bala perimeter ea sekwere, re hloka feela ho tseba bolelele ba lehlakore le leng la sona. Ebe re sebelisa mokhoa o bonolo:
\[ K = 4 \makgetlo a s \]
Di mana:
– \( K \) ke moedi wa sekwere,
– \( s \) ke bolelele ba lehlakore la sekwere.
Foromo ena e bonolo haholo ho e hopola hobane e kenyelletsa feela ho atisa bolelele ba lehlakore ka tse 'ne, e leng palo ea mahlakore ka sekwere.
Mohlala oa Palo
A re nke mehlala e meng ho utloisisa mokhoa oa ho sebelisa mokhoa ona lipalo-palong tsa 'nete:
Mohlala oa 1:
A re re re na le sekwere se bolelele ba lehlakore ba 5 cm. Re sebelisa foromo e kaholimo,
\[ K = 4 \makgetlo a s \]
\[ K = 4 \makgetlo a 5 \]
\[ K = 20 \mongolo{ cm} \]
Kahoo, perimeter ea sekwere ke 20 cm.
Mohlala oa 2:
Haeba lehlakore la sekwere le le limithara tse 8, joale potoloho ea lona ke:
\[ K = 4 \makgetlo a 8 \]
\[ K = 32 \mongolo{dimithara} \]
Ka hona, perimeter ea sekwere ke limithara tse 32.
Litšebeliso tsa Perimithara ea Sekwere Bophelong ba Letsatsi le Letsatsi
Ho bala perimeter ea sekwere ho ka sebelisoa likarolong tse fapaneng tsa bophelo ba letsatsi le letsatsi. Mehlala e meng ke ena:
1. Theha Foreimi ea Foto:
Haeba o batla ho etsa foreimi ea setšoantšo e sekoere, o tla hloka ho tseba moeli oa eona ho bala bongata ba thepa e hlokahalang. Mohlala, haeba foreimi ea setšoantšo e na le lehlakore le bolelele ba 10 cm, bolelele ba lehong le hlokahalang ho etsa foreimi ke:
\[ K = 4 \makgetlo a 10 \]
\[ K = 40 \mongolo{ cm} \]
2. Ho potoloha Serapa:
A re re serapa se na le sekwere mme lehlakore la sona le bolelele ba limithara tse 50. Haeba o batla ho tsamaya serapeng, o ka bala sebaka seo o tla se nka ka ho potoloha serapa.
\[ K = 4 \makgetlo a 50 \]
\[ K = 200 \mongolo{dimithara} \]
U tla tsamaea limithara tse 200 ho potoloha serapa sa boikhathollo.
3. Limpho tsa ho phuthela:
Mohlala, haeba o na le lebokose le sekwere le nang le mahlakore a bolelele ba 30 cm mme o batla ho khabisa mathoko ka ribone, bolelele ba ribone boo o tla bo hloka ke:
\[ K = 4 \makgetlo a 30 \]
\[ K = 120 \mongolo{ cm} \]
Sena se o thusa ho fumana hore na ho hlokahala ribone e kae ho phuthela mpho ka bokgabane.
Liphoso tse Tloaelehileng tsa ho Bala Perimitha ea Sekwere
Leha ho bala perimeter ea sekwere ho bonahala ho le bonolo, ho na le liphoso tse tloaelehileng tse atisang ho hlaha, haholo-holo har'a baithuti ba qalang:
1. Ke lebetse ho Atisa ka Nne:
Phoso ena e etsahala ha motho a bala bolelele ba lehlakore le le leng feela kapa a kopanya bolelele ba mahlakore a mabedi feela mme a lebala hore perimeter yohle ke kakaretso ya mahlakore a mane a sekwere.
2. Ho Sebelisa Diyuniti tse Fapaneng:
Etsa bonnete ba hore mahlakore ohle a lekanngoa ka diyuniti tse tshwanang. Diphoso di ka hlaha haeba mahlakore a lekanngwa ka diyuniti tse fapaneng (mohlala, lehlakore le leng ka dimithara le le leng ka disentimitara).
3. Liphoso tsa ho Lekanya Bolelele ba Lehlakore:
Phoso ena e atisa ho hlaha ha litekanyo li sa nkuoe ka hloko. Mohlala, haeba bolelele ba lehlakore bo lekantsoe ka phoso kapa palo e chitja ho feta tekano, palo ea perimeter e ka ba e sa nepahalang.
Malebela a ho Qoba Liphoso ha ho Baloa Perimithara ea Sekwere
Ho qoba liphoso tsena tse tloaelehileng, malebela a mang a ka thusang ke ana:
1. Utloisisa Mehopolo ea Motheo:
Etsa bonnete ba hore oa utloisisa hore moeli oa sekwere ke kakaretso ea bolelele ba mahlakore a eona a mane a lekanang. Sena se tla u thusa ho hopola ho atisa bolelele ba lehlakore ka bone.
2. Sebelisa Lisebelisoa tse Nepahetseng tsa ho Lekanya:
Ha o lekanya bolelele ba lehlakore la sekwere, sebedisa disebediswa tse nepahetseng tsa ho lekanya mme o etse bonnete ba hore o bala sekala ka nepo. Disebediswa tse kang rula, theipi ya ho lekanya, kapa theipi ya ho lekanya di ka thusa haholo.
3. Fetola Diyuniti Haeba ho Hlokahala:
Haeba lehlakore la sekwere le lekanngoa ka diyuniti tse fapaneng, etsa bonnete ba hore o fetolela diyuniti pele o kenya boleng ka hara foromo. Mohlala, fetola disentimitara ho dimithara kapa ka tsela e fapaneng haeba ho hlokahala.
4. Lipalo tsa Tlhahlobo e Habeli:
Kamora ho bala sedikadikwe, kamehla hlahloba mosebetsi oa hau habeli. Ho hlahloba lipalo tsa hau habeli ke mohato oa bohlokoa ho netefatsa hore ha ho na liphoso tsa lipalo.
Qetello
Ho bala perimeter ea sekwere ke bokhoni ba motheo ba lipalo bo thusang haholo maemong a mangata a letsatsi le letsatsi. Ka ho sebelisa foromo e bonolo \( K = 4 \times s \), o ka bala perimeter ea sekwere habonolo le ka nepo. Tekanyo e hlokolosi le lipalo, hammoho le kutloisiso e ntle ea likhopolo tsa motheo, li tla u thusa ho qoba liphoso tse tloaelehileng le ho hlahisa liphetho tse nepahetseng. Re tšepa hore sengoloa sena se u thusitse ho utloisisa mokhoa oa ho bala perimeter ea sekwere habonolo le ho e sebelisa litlhokong tse fapaneng.
