ʻO ka ʻāpana keʻa o ka cylinder e like me ka ʻāpana o ka pōʻai inā ʻoki like ʻia me ke kumu pōʻai. ʻO ka ʻāpana cross-sectional ka ʻāpana o kahi ʻano ʻelua-dimensional i loaʻa i ka wā e ʻoki ʻia ai kahi mea ʻekolu-dimensional - e like me ka cylinder - e ʻoki pono ʻia i kekahi axis i kuhikuhi ʻia ma kahi kiko.
Pēlā nō, He aha ke ʻano o ka ʻāpana kea? Hoʻoholo ʻia ka ʻāpana cross-sectional ma ka hoʻohālua ʻana i ka radius a laila e hoʻonui i ka 3.14. No ka laʻana, inā ana ʻia kahi lāʻau ma ke ʻano he 10u201d DBH, ʻo 5u201d ka radius. ʻO ka hoʻonui ʻana i ka 5 me 5 ua like ia me 25, a ke hoʻonui ʻia me 3.14 ua like ia me 78.5. No laila, ʻo ka ʻāpana cross-sectional o kahi lāʻau 10u201d DBH he 78.5.
He aha ka haʻina wahi? Hāʻawi ʻia i kahi huinahā lōʻihi me ka lōʻihi l a me ka laulā w, ʻo ke kumumanaʻo no ia wahi: A = lw (huinahā). ʻO ia, ʻo ka ʻāpana o ka huinahā lōʻihi ka lōʻihi e hoʻonui ʻia e ka laulā. Ma ke ʻano he kūlana kūikawā, ma ke ʻano he = u ma ka hihia o ka square, hāʻawi ʻia ka ʻāpana o kahi square me ka lōʻihi o ka ʻaoʻao e ka haʻilula: A = s2 (huinahā).
Pehea ʻoe e hoʻoponopono ai i nā pauku keʻa?
ʻO ka lua Pehea ʻoe e hoʻohana ai i ka formula area?
He aha ka leo o kēia paukūʻolokaʻa?
ʻO ke kumumanaʻo no ka leo o ka paukū ʻo V = Bh aiʻole V=πr2h . ʻO 8 knm ka radius o ka cylinder a he 15 knm ke kiʻekiʻe. E hoʻokomo i ka 8 no r a me 15 no ka h ma ke ʻano V=πr2h . E hoʻomaʻamaʻa.
a laila He aha ka ʻāpana a me ka laʻana? ʻĀpana ʻāpana
No ka laʻana, inā makemake ʻoe e ʻike i ka ʻāpana o kahi pahu huinaha me ka ʻaoʻao 40 cm, e hoʻohana ʻoe i ke ʻano: Wahi o ka huinaha = a2, kahi o ka aoao o ka huinahalike. Pēlā nō, hiki ke ʻike ʻia ka ʻāpana o kahi triangle me ka hoʻohana ʻana i kāna ʻāpana Area (1/2 × b × h).
Pehea ʻoe e helu ai i ka volume cross-sectional? No ka helu ʻana i ka nui o ka cylinder, a laila, maʻalahi mākou e hoʻonui i ka ʻāpana o ka ʻāpana kea me ke kiʻekiʻe o ka cylinder: V=A⋅h. I ka hihia o ka pōʻai pōʻai ʻākau (hiki ke sopa), lilo kēia i V=πr2h. Kiʻi 1.1. 1: ʻO kēlā me kēia ʻāpana keʻa o kahi cylinder e like me nā mea ʻē aʻe.
Pehea ʻoe e ʻike ai i ka volume cross-sectional?
ʻO ka leo ma ke ʻano ʻāpana keʻa lawe i ka ʻāpana o nā ʻāpana āpau o ke ʻano a hoʻohui iā lākou e ʻike i ka nui o ka leo. No nā kiʻi ʻelua, inā he ʻāpana like nā ʻāpana pili, a laila e like ka huina a me ka leo like o nā kiʻi.
He aha ka pauku kea ma ka makemakika? ʻO ka ʻāpana keʻa he ʻāpana mokulele ʻo ia he ʻāpana o kahi mea ʻekolu-dimensional e pili like ana me kekahi o kona mau papa hoʻohālikelike a i ʻole e kū pono ana i kekahi o kona mau laina hoʻohālikelike.. E wehewehe i nā ʻano i hana ʻia e nā ʻāpana keʻa (pālike, rectangle, triangle, etc.).
He aha ke ʻano o ka laʻana?
He aha ka Area?
Ka inoa o ke kinona: | Formula Nui: |
---|---|
triangle | Kahi = bh, ma hea ke kumu o b, A h ke kiʻekiʻe. |
pāhoʻonui | Kahi = l × l, kahi l ka lōʻihi o kēlā me kēia ʻaoʻao. |
Rectangle | Wahi = l × w, kahi l ka lōʻihi a w ka laulā. |
ʻO Parallelogram | ʻĀpana = b × h, kahi o ke kumu o ka b, a he kiʻekiʻe kiʻekiʻe ʻo h. |
He aha ka hopena o ka ʻāpana? Ana ʻia ka ʻāpana ma nā ʻāpana huinaha e like me nā ʻīniha huinaha, kapuaʻi kūhāhā a i ʻole mika huinaha. No ka huli ʻana i ka ʻāpana o ka ʻāpana ʻāpana, e hoʻonui i ka lōʻihi me ka laula. ʻO ke kumu: A=L*W ma kahi o ʻA kahi, ʻo L ka lōʻihi, ʻo W ka laulā, a * ʻo ia hoʻi ka hoʻonui.
Pehea e helu ai i ka ʻāina?
no ka pōkole), e hoʻoholo i ka lōʻihi a me ka laulā o kahi āu e hana nei, e ana ʻia i nā kapuaʻi. E hoʻonui i ka lōʻihi i ka laulā a loaʻa iā ʻoe nā kapuaʻi kūwae. Eia kahi kumuhana maʻamau hiki iā ʻoe ke hāhai: Lōʻihi (i nā wāwae) x ka laula (i nā kapuaʻi) = kahi i sq.
He aha ka ʻāpana o ka cylinder?
ʻO ka leo o ka paukūʻolokaʻa π r² h, a ʻo kona ʻāpana kahi 2π rh + 2π r².
Pehea ʻoe e ʻike ai i ka ʻāpana o kahi cylinder? Hāʻawi ʻia ke kumu e helu ai i ka nui o ka ʻili o kahi cylinder, ka huina o ka ʻili o ka cylinder = 2πr(h + r), oiai o ka ili piko o ke kumu hookuku, o ka ili piko o ke kinikini = 2πrh, kahi o 'r' ka radius o ke kumu a o ka 'h' ke kiekie o ke kinikini.
No ke aha ke kumu no ka leo o ka puʻupuʻu? No laila, hiki ke hāʻawi ʻia ka nui o ka cylinder e ka huahana o ka wahi o ke kumu a me ke kiʻekiʻe. No kēlā me kēia puʻupuʻu me ka radius kumu 'r', a me ke kiʻekiʻe 'h', ʻo ka leo ka helu kumu i ke kiʻekiʻe. No laila, ka leo o ka puʻukū = r2h ʻāpana cubic.
Pehea wau e helu ai i ka ʻāpana o ka pōʻai?
ʻO ke kumu no ka ʻāpana o ka pōʻai A = pi * r * r kahi r ka radius (anawaena / 2).
Pehea ʻoe e ʻike ai i ka māhele o ka makemakika papa 4?
Ua like anei ka huina kea me ka leo?
Hāʻawi ʻia i kahi paʻa kūʻokoʻa, hiki iā mākou ke hoʻohālikelike i kona leo ma ka ʻoki ʻana iā ia i n ʻāpana lahilahi. Ke lahilahi nā ʻāpana, hiki ke hoʻopili maikaʻi ʻia kēlā me kēia ʻāpana e ka cylinder ʻākau maʻamau. Pela ʻO ka nui o kēlā me kēia ʻāpana e pili ana i kona ʻāpana ʻāpana × mānoanoa.
He aha ke ʻano o ka leo? ʻOiai ʻo ke kumu kumu no ka ʻāpana o kahi ʻano ʻāpana ʻāpana he lōʻihi × laula, ʻo ke kumu kumu no ka leo loa × laula × kiʻekiʻe.
He aha ke kaha kiʻi ʻaoʻao?
ʻO nā ʻāpana keʻa, a i ʻole nā ʻāpana, e like me ka mea maʻamau kiʻi kiʻi kiʻi kiʻi kiʻi kiʻi kiʻi ʻoniʻoni o nā hale me kahi ʻoki e hele ana iā lākou. Hōʻike kēia ʻano kuhi i kahi kaha kiʻi ʻekolu i ka nānā ʻelua.
He aha nā ʻano o nā ʻāpana keʻa o ka cylinder? ʻO ka ʻāpana keʻa o ka cylinder he pōʻai.
He aha ka hoʻonui ʻāpana?
Hoonui i ka a Helu helu 1 e hoʻohana ana i nā hiʻohiʻona wahi
E hōʻike i ka pilikia ma ke ʻano he ʻāpana o ka ʻāpana ʻāpana, a laila e wāwahi i kēlā ʻāpana ʻāpana i mau ʻāpana liʻiliʻi no ka hoʻoponopono maʻalahi. Ua ʻike ʻia kēia ʻano he hoʻonui pahu.
Pehea ʻoe e ʻike ai i kahi me nā helu 3?