Ma kēia hoʻolaha, e noʻonoʻo mākou i ka wehewehe a me nā waiwai kumu o kahi trapezoid isosceles.
E hoʻomanaʻo ua kapa ʻia ka trapezoid ʻāpana isosceles (a i ʻole isosceles) inā like kona mau ʻaoʻao, ʻo ia hoʻi AB = CD.
Waiwai 1
Ua like na kihi ma kekahi kumu o ka trapezoid isosceles.
- ∠DAB = ∠ADC = a
- ∠ABC = ∠DCB = b
Waiwai 2
ʻO ka huina o nā ʻaoʻao kūʻē o kahi trapezoid 180 °.
No ke kiʻi ma luna: α + β = 180°.
Waiwai 3
Ua like ka loa o na diagonal o ka trapezoid isosceles.
AC = BD = d
Waiwai 4
Kiʻekiʻe o kahi trapezoid isosceles BEhoʻohaʻahaʻa ʻia ma ke kumu o ka lōʻihi ʻoi aku AD, e puunaue i elua mahele: o ka mua ua like ia me ka hapalua o ka huina o na kumu, o ka lua ka hapalua o ko lakou okoa.
Waiwai 5
Māhele laina MNʻo ka hoʻohui ʻana i nā kiko waena o nā kumu o kahi trapezoid isosceles e pili pono ana i kēia mau kumu.
Ua kapa ʻia ka laina e hele ana ma waena o nā kumu o kahi trapezoid isosceles axis o symmetry.
Waiwai 6
Hiki ke hoʻopuni ʻia ka pōʻai a puni kekahi trapezoid isosceles.
Waiwai 7
Ina ua like ka huina o na kumu o ka trapezoid isosceles me ka palua o ka loa o kona aoao, alaila, hiki ke kahaia i ka poai maloko.
Ua like ka radius o ia pōʻai me ka hapalua o ke kiʻekiʻe o ka trapezoid, ʻo ia hoʻi R = h/2.
'Ōlelo Aʻo: ʻO ke koena o nā waiwai e pili ana i nā ʻano trapezoids āpau i hāʻawi ʻia i kā mākou hoʻolaha -.