Video: Muaj pes tsawg lub vertices ib lub hauv paus puas Heptagonal prism muaj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Teb thiab piav qhia:
Lub heptagonal prism muaj 14 vertices. Ib tug heptagonal prism yog ib tug prism nyob rau hauv uas lub hauv paus yog heptagons, los yog polygons nrog xya sab thiab xya vert.
Tsis tas li ntawd kom paub yog, pes tsawg lub vertices ib lub hauv paus puas hexagonal prism muaj?
12 lus
prism puas muaj 7 vertices? Ib tug heptahedron (plural: heptahedra) yog polyhedron muaj xya sab, los yog ntsej muag. Ib heptahedron ua tau coj tus naj npawb ceeb ntawm cov ntawv sib txawv, lossis topologies. Tej zaum feem ntau paub yog hexagonal pyramid thiab pentagonal prism.
Hais txog qhov no, pes tsawg lub vertices ib lub hauv paus puas pentagonal prism muaj?
Nyob rau hauv geometry, lub pentagonal prism yog ib tug prism nrog ib tug pentagonal puag. Nws yog ib hom heptahedron nrog 7 lub ntsej muag, 15 npoo, thiab 10 rov.
Puas yog Pentagon puas muaj cov vertices?
A pentagon muaj tsib ntsug . Hauv geometry, a vertex yog lub ntsiab lus ntawm kev sib ntsib ntawm ob lossis ntau txoj kab ncaj nraim. A pentagon yog tsib-sided ca puab nrog ncaj sab, uas txhais tau tias nws muaj tsib lub kaum lossis tsib ntsug . Ib txwm pentagon muaj txhua sab sib npaug ntawm qhov ntev thiab 108-degree sab hauv cov ces kaum.
Pom zoo:
Muaj pes tsawg lub hauv paus zoo tuaj yeem muaj qhov sib npaug?
Ib txoj hauv kev los txiav txim siab qhov siab tshaj plaws ntawm qhov zoo thiab qhov tsis zoo ntawm cov hauv paus ntsiab lus ntawm polynomial. Txij li thaum muaj peb qhov kev hloov pauv, muaj qhov siab tshaj plaws ntawm peb lub hauv paus zoo
Koj puas ntxiv cov kua qaub rau hauv lub hauv paus lossis lub hauv paus rau cov kua qaub?
Ntxiv cov kua qaub ua kom cov concentration ntawm H3O + ions hauv cov tshuaj. Ntxiv ib lub hauv paus txo cov concentration ntawm H3O + ions hauv cov tshuaj. Cov kua qaub thiab lub hauv paus zoo li cov tshuaj tiv thaiv. Yog hais tias lub hauv paus yog ntxiv rau cov kua qaub, cov tshuaj yuav tsis acidic thiab txav mus rau nruab nrab ntawm pH nplai
Muaj pes tsawg guanine bases puas yog 50 lub hauv paus khub ob txoj hlua DNA 100 bases tag nrho muaj yog tias nws muaj 25 adenine bases?
Yog li, muaj tag nrho ntawm 25 + 25 = 50 adenine thiab thymine hauv tag nrho. Qhov ntawd tawm 100− 50 = 50 seem hauv paus. Nco ntsoov tias cytosine thiab guanine daim ntawv cog lus nrog ib leeg, thiab yog li lawv sib npaug ntawm cov nyiaj. Tam sim no peb tuaj yeem faib los ntawm 2 kom tau txais tus lej ntawm guanine lossis cytosine hauv paus
Muaj pes tsawg lub tangents hauv lub voj voog uas sib tshuam hauv ob lub ntsiab lus muaj?
Thaum ib lub voj voog nyob tag nrho hauv ib leeg yam tsis tau kov, tsis muaj tangent. Thaum ob lub voj voog kov ib leeg sab hauv 1 cov tangent tuaj yeem kos rau lub voj voog. Thaum ob lub voj voog sib tshuam hauv ob lub ntsiab lus tiag tiag thiab sib txawv, 2 cov tangents tuaj yeem kos rau lub voj voog
Yuav ua li cas muaj pes tsawg tus ntug polyhedron uas muaj plaub lub ntsej muag thiab plaub vertices?
Yog hais tias cov khoom yog polyhedron, npe nws thiab nrhiav tus naj npawb ntawm lub ntsej muag, ntug thiab vertices nws muaj. Lub hauv paus yog daim duab peb sab thiab txhua sab yog daim duab peb sab, yog li qhov no yog daim duab peb sab pyramid, uas tseem hu ua tetrahedron. Muaj 4 lub ntsej muag, 6 ntug thiab 4 ntsug