Okuqukethwe
Kule ncwadi, sizocubungula izici eziyinhloko zephiramidi (ngokuphathelene nemiphetho esemaceleni, ubuso, ebhalwe phansi futhi echazwe phansi kombuthano), ehambisana nemidwebo ebonakalayo ukuze uthole umbono ongcono wolwazi olwethulwe.
Qaphela: sihlole incazelo yephiramidi, izakhi zayo eziyinhloko nezinhlobonhlobo, ngakho-ke ngeke sigxile kuzo ngokuningiliziwe lapha.
izakhiwo zephiramidi
Iphiramidi enezimbambo eziseceleni ezilinganayo
Impahla 1
Wonke ama-engeli phakathi kwezinhlangothi ezisemaceleni kanye nesisekelo sephiramidi ayalingana.
∠EAC = ∠ECA = ∠EBD = ∠EDB = a
Impahla 2
Umbuthano ungachazwa uzungeze isisekelo sephiramidi, isikhungo esizoqondana nokubonakala kwendawo ephezulu esisekelweni sawo.
- Point F - ukuqagela kwe-vertex E ngesisekelo A B C D; futhi iyisikhungo salesi sisekelo.
- R iyiradiyasi yesiyingi esisokiwe.
Ubuso obusemaceleni bephiramidi buthambekele esisekelweni nge-engeli efanayo.
Impahla 3
Umbuthano ungabhalwa phansi kwephiramidi, isikhungo esihambisana nokubonakala kwe-vertex esisekelweni somfanekiso.
Impahla 4
Zonke izindawo eziphakeme zobuso obuseceleni bephiramidi ziyalingana.
EL = EM = EN = EK
Qaphela: ezicini ezibalwe ngenhla, ukwakheka okuphambene nakho kuyiqiniso. Ngokwesibonelo, for Izakhiwo 1: uma wonke ama-engeli phakathi kwezinhlangothi ezisemaceleni kanye nendiza yesisekelo sepiramidi ilingana, khona-ke le miphetho inobude obufanayo.