Ukuthola ipherimitha yesikwele: ifomula nemisebenzi

Kulolu shicilelo, sizocubungula indlela yokubala umjikelezo wesikwele futhi sihlaziye izibonelo zokuxazulula izinkinga.

I-Perimeter Formula

Ngobude obuseceleni

Ipherimitha (P) yesikwele ilingana nesamba sobude bezinhlangothi zayo.

P = a + a + a + a

Njengoba zonke izinhlangothi zesikwele ziyalingana, ifomula ingavezwa njengomkhiqizo:

P = 4 ⋅ a

Ngokuhambisana nobude be-diagonal

Ipherimitha (P) yesikwele ilingana nomkhiqizo wobude be-diagonal yayo kanye nenombolo engu-2√2:

P = d ⋅ 2√2

Le fomula ilandela kusukela kusilinganiso sobude bohlangothi (a) kanye ne-diagonal (d) yesikwele:

d = a√2.

Izibonelo zemisebenzi

Umsebenzi 1

Thola i-perimeter yesikwele uma uhlangothi lwaso luyi-6 cm.

Isinqumo:

Sisebenzisa ifomula lapho inani lohlangothi lihilelekile:

P = 6 cm + 6 cm + 6 cm + 6 cm = 4 ⋅ 6 cm = 24 cm.

Umsebenzi 2

Thola ipherimitha yesikwele esinodayagonali ongu-√2 bheka

1 Isixazululo:

Ngokucabangela inani elaziwa yithi, sisebenzisa ifomula yesibili:

P = √2 cm ⋅ 2√2 = 4cm.

2 Isixazululo:

Veza ubude bohlangothi ngokuya nge-diagonal:

a = d / √2 =√2 cm/√2 = 1cm.

Manje, sisebenzisa ifomula yokuqala, sithola:

P = 4 ⋅ 1 cm = 4 cm.