Ma kēia paʻi ʻana, e noʻonoʻo mākou pehea e helu ai i ka perimeter o kahi triangle a me ka nānā ʻana i nā hiʻohiʻona o ka hoʻoponopono ʻana i nā pilikia.
Formula Perimeter
Anapuni (P) o kekahi huinakolu, ua like ia me ka huina o na loa o kona mau aoao a pau.
P = a + b + c
Anapuni o ka huinakolu isosceles
ʻO ka huinakolu isosceles he huinakolu nona nā ʻaoʻao ʻelua i like (e lawe kākou iā lākou e like me b). ʻaoʻao a, he okoa ka loa mai na aoao, oia ke kumu. No laila, hiki ke helu ʻia ke anapuni penei:
P = a + 2b
Anapuni o ka huinakolu kaulike
Ua kapa ʻia ka huinakolu ʻālike a i ʻole huinakolu ʻākau, kahi i like nā ʻaoʻao a pau (e lawe kākou ma ke ʻano he a). Ua helu ʻia ke anapuni o ia kiʻi penei:
P = 3a
Nā laʻana o nā hana
Hana 1
E huli i ke anapuni o ka huinakolu ina ua like kona mau aoao: 3, 4 a me 5 knm.
Hoʻoholo:
Hoʻololi mākou i nā nui i ʻike ʻia e nā kūlana o ka pilikia i loko o ke kumu a loaʻa:
P=3cm+4cm+5cm=12cm.
Hana 2
E huli i ke anaina o ka huinakolu isosceles ina he 10 knm kona kumu a he 8 knm kona aoao.
Hoʻoholo:
E like me kā mākou ʻike, ua like nā ʻaoʻao o kahi huinakolu isosceles, no laila:
P = 10 knm + 2 ⋅ 8 knm = 26 knm.