Kodi kupeza buku la bokosi?

Pamaso timapita pa mbali yeniyeni ya nkhani, pamene tiona kuti buku la bokosi, tiyeni tikumbukire kuti ndi chithunzi ichi, ndi kudziwa chifukwa kuwerengetsera awa ife angafunikire.

Pali matanthauzo atatu, ndipo iwo ali onse ofanana. Mwachitsanzo, parallelepiped ndi:

1. polyhedron ndi nkhope zisanu, omwe ndi parallelogram.

2. hexagon, amene ali magulu atatu a nkhope kufanana ndi mzake.

3. prism amene m'munsi ndi parallelogram.

Mwina wamba mu mitundu yathu moyo weniweniwo pansi kulingalira akalumikidzidwa zojambula - ndi cuboid ndi kyubu. Komanso, kusiyana ndi amene adapangidwa pakati pa parallelepiped mwachindunji ndi oblique.

Cuboid: buku

Cuboid osiyana ndi aliyense amakumana ndi izo - ndi rectangle. Monga banja chitsanzo cha ndondomeko imene ingathandize bokosi yachibadwa (a nsapato, mphatso, kulipilira).

Choyamba tiyenera kupeza mfundo mbali ziwiri za maziko a parallelepiped imene inakonza perpendicular kwa wina ndi mzake (mu ndege iwo anamutcha m'lifupi ndi m'litali).

P = A * B, kumene A - kutalika B - m'lifupi.

Tsopano ife ina muyeso - kutalika kwa chithunzi anapatsidwa, lomwe adzatchedwa N.

Koma chofunika kuchuluka tikuphunzira, ngati ife kuchulukitsa kutalika kwa malo m'munsi, mwachitsanzo:

V = N H. *

Voliyumu ya bokosi molunjika

molunjika parallelepiped yodziwika kuti mbali ya mbali yake - rectangles chifukwa chakuti ali perpendicular ndi chiwerengero m'munsi.

voliyumu kuchita masamu chimodzimodzi, kusiyana kokha ndi kutalika pano - palibe ndi m'mphepete mwa bokosi. Pankhaniyi ndi mzere kuti zikugwirizana nkhope ziŵiri zotsutsana perpendicular ndi chiwerengero ndi maziko ake.

Chikhazikitsireni maziko a parallelepiped wanu ndi parallelogram osati rectangle, ndiye chilinganizo kwa mawerengedwe a m'dera m'munsi penapake zovuta. izo tsopano motere:

P = A * B tchimo * (a) mmene A, B - m'litali ndi moyenera, m'lifupi m'munsi, ndi "a" - mbali yomwe iwo amapanga pa mphambano zawo.

Kodi kupeza buku la oblique amakona anayi?

Mumbali anazindikira parallelepiped aliyense, zomwe siziri zolondola.

Chifukwa chakuti nkhope ya kanjedza si perpendicular kwa m'munsi, muyenera choyamba kupeza kutalika. Yochulutsa pa zotsalira omwewo (onani pamwamba chilinganizo), ndipo inu kuchuluka kwa:

V = P H * kumene P - m'dera m'munsi, H - kutalika.

Buku la parallelepiped ndi nkhope lalikulu

Kyubu - ndi amakona anayi parallelepiped, nkhope sikisi omwe ndi lalikulu. Choncho chuma cha zimakwana - m'mbali zake zonse ndi zofanana pakati pawo. Mwachitsanzo, tiyerekeze chidole mwana monga cubes.

Chabwino, izo zonse zapamwamba kupeza buku la kyubu a. Kuti tichite zimenezi, muyenera kusankha gawo limodzi lokha (nthiti) ndi kumanga phindu zopezera digiri wachitatu. Apa momwe:

V = A³.

Monga buku la bokosi zingakhale zothandiza kwa ife m'moyo wathu?

Kuganiza kuti ndinu anadabwa kwambiri ndi vutoli, chiwerengero cha mabokosi kuti akhoza kuwavomereza galimoto yanu. Kuti tichite zimenezi, muyenera mudzikonzere okha ndi wolamulira kapena tepi muyeso, cholembera, pepala, komanso mitunduyi pamwamba pa kuwerengetsa voliyumu ya cuboid a.

Ndi kuyeza buku la bokosi, ndi kuchulukitsa mtengo ndi chiwerengero cha mafelemu anu alipo, mudzaphunzila mmene ambiri kiyubiki masentimita chofunika kwa kuwayika iwo mu m'galimoto.

Ndipo inde, kumbukirani kuti nthaŵi zina m'pofunika kuti masentimita kiyubiki adzakhala n'kukhala meters. Choncho, ngati inu kupeza buku la bokosi la 50 cm kyubu, ndiye kusamutsa chabe kuchulukitsa chithunzi ichi ndi 0.001. Kotero kuti inu mumvetsa mita kiyubiki. Ndipo ngati mukufuna kudziwa buku malita, zotsatira mu kiyubiki mamita, kuchulukitsa ndi 1000.