Video: Lub teardrop zoo li cas hu ua?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Dej- zoo li tus moldavites, qee zaum kuj hu ua teardrops, belongs rau feem ntau nrov cov duab.
Ua li no, lub teardrop zoo li cas?
Lawv tuaj yeem jiggle ib ncig me ntsis thiab ntau dua oval zoo li tus qee zaum, tab sis lawv tsis yog zoo li tus zoo li a kua muag . Qhov no classic teardrop puab los ntawm cov dej ntws tawm ntawm tus kais dej (los yog tawm ntawm nplooj ntoo, los yog tawm ntawm lub taub dej). Thaum cov dej txhim kho nws hnyav dua thiab hnyav dua.
Ib yam li ntawd, dab tsi yog qhov tshwj xeeb tshaj plaws? 12 Cov duab uas koj tsis paub muaj npe
- Balbis. Qhov zoo tshaj plaws-paub piv txwv ntawm cov duab no yog tsab ntawv loj H.
- Squircle. ThinkStock.
- Heptagram. ThinkStock.
- Triquetra. Wikimedia Commons.
- Lub hnub qub ntawm Lakshmi. ThinkStock.
- Lemniscate. ThinkStock.
- Vesica Piscis. Wikimedia Commons.
- Chaw ntau pob. Wikimedia Commons.
Ib yam li ntawd, vim li cas lub teardrop yog qhov zoo tshaj plaws aerodynamic?
Rau speeds qis tshaj qhov ceev ntawm lub suab, lub feem ntau aerodynamically npaum puab yog cov kua muag . Cov kua muag muaj lub qhov ntswg sib npaug uas tapers thaum nws txav rov qab, ua ib qho nqaim, tsis tau sib npaug, uas maj mam nqa cov huab cua nyob ib ncig ntawm cov khoom rov qab ua ke es tsis txhob tsim cov eddy tam sim no.
Lub npe L yog dab tsi?
tus L puab yuav yog hexagon li kuv xav tias nws muaj 6 sab thiab lwm yam puab suab zoo li nws muaj 8 sab ces yog octogan - tsis muaj teeb meem yog tias koj xav tias lawv zoo li tsis muaj hexagon lossis octagon nws yog tus naj npawb ntawm sab uas koj suav - tsis meej pem, kuv paub.
Pom zoo:
Koj tuaj yeem ua pov thawj li cas 2 daim duab peb sab zoo sib xws siv lub kaum sab xis sab SAS zoo sib xws postulate?
SAS Similarity Theorem hais tias yog ob sab hauv ib daim duab peb sab yog proportional rau ob sab hauv lwm daim duab peb sab thiab lub kaum sab xis nyob rau hauv ob qho tib si congruent, ces ob daim duab peb sab zoo ib yam. Ib qho kev hloov pauv zoo sib xws yog ib lossis ntau qhov kev hloov pauv tsis tu ncua ua raws li kev dilation
Lub Tuam Tsev txhais li cas thaum nws hais tias kuv ntseeg tias qhov zoo rau nyuj yog qhov zoo rau kev lag luam?
Lub tuam tsev txhais tau hais tias yog cov nyuj muaj kev hwm thiab kho tau zoo, lawv yuav yooj yim dua los tuav uas yuav ua rau cov txheej txheem zoo dua rau txhua tus neeg koom tes
Lub zog zoo li cas yog lub teeb lub zog hloov dua siab tshiab kom lub tshuab xam zauv ua haujlwm?
Kab nyob rau sab saum toj ntawm lub tshuab xam zauv. Ua li cas lub zog yog lub teeb lub zog hloov dua siab tshiab kom lub tshuab xam zauv ua haujlwm? Lawv hloov lub teeb lub zog rau hauv hluav taws xob hluav taws xob. zaub mov
Vim li cas tsis zoo thiab tsis zoo yog qhov zoo?
Thaum koj muab qhov tsis zoo los ntawm qhov tsis zoo koj tau txais qhov zoo, vim tias ob lub cim tsis zoo raug muab tso tseg
Koj yuav ua li cas thiaj paub tias kev sib raug zoo yog qhov zoo lossis tsis zoo?
Qhov zoo correlation coefficient txhais tau hais tias raws li tus nqi ntawm ib qho kev sib txawv nce, tus nqi ntawm lwm qhov sib txawv nce; raws li ib tug txo qhov qis dua. Qhov tsis zoo correlation coefficient qhia tau hais tias raws li ib qho kev sib txawv nce, qhov txo qis, thiab vice-versa