Cov txheej txheem:
Video: Yuav ua li cas koj dilate ib kab segment nrog ib tug compass?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Zaj Lus Qhia
- Kos ncaj kab txuas txhua vertex mus rau qhov chaw ntawm dilation .
- Siv cov compass nrhiav cov ntsiab lus uas yog ob npaug ntawm qhov kev ncua deb ntawm qhov chaw dilation raws li tus thawj vertices.
- Txuas cov vertices tshiab los tsim cov dilated duab.
Tib neeg kuj nug, koj ua li cas dilate lub luag haujlwm?
Kab rov tav dilation . Yog tias x hloov los ntawm x / A hauv cov qauv thiab A> 1, ces qhov cuam tshuam ntawm daim duab yog nthuav nws los ntawm qhov zoo ntawm A hauv x-kev taw qhia (tawm ntawm y-axis). Yog tias A nyob nruab nrab ntawm 0 thiab 1 ces cov txiaj ntsig ntawm daim duab yog cog lus los ntawm qhov zoo ntawm 1 / A (mus rau y-axis).
Tom qab ntawd, lo lus nug yog, qhov ntsuas qhov ntsuas txhais li cas? A ntsuas qhov ntsuas yog tus lej uas nplai , los yog multiplies, ib co kom muaj nuj nqis. Hauv kev ntsuas, lub ntsuas qhov ntsuas ntawm ib qho cuab yeej qee zaum hu ua rhiab heev. Qhov piv ntawm ob qhov ntev sib xws hauv ob daim duab geometric zoo sib xws yog hu ua Scale Factor.
Kuj paub, koj yuav nrhiav tau qhov ntsuas qhov ntsuas li cas?
Rau nrhiav ib ntsuas qhov ntsuas ntawm ob daim duab zoo sib xws, nrhiav ob sab sib txuas thiab sau qhov piv ntawm ob sab. Yog tias koj pib nrog daim duab me me, koj ntsuas qhov ntsuas yuav tsawg dua ib. Yog tias koj pib nrog daim duab loj, koj ntsuas qhov ntsuas yuav loj dua ib.
Koj pom txoj kab nqes li cas?
Cov txoj kab nqes ntawm ib kab characterizes cov kev taw qhia ntawm ib kab. Rau nrhiav tus txoj kab nqes , koj faib qhov sib txawv ntawm y-coordinates ntawm 2 cov ntsiab lus ntawm ib kab los ntawm qhov sib txawv ntawm x-coordinates ntawm tib 2 ntsiab lus.
Pom zoo:
Yuav ua li cas tshwm sim thaum koj sib tov ib tug muaj zog acid nrog ib tug tsis muaj zog puag?
Hom 2: thaum muaj zog acid / base reacts nrog lub hauv paus tsis muaj zog / acid yog hydronium thiab hydroxyl ions tam sim no nyob rau hauv sib npaug amt ces ntsev thiab dej yog tsim thiab lub zog tso tawm uas tsawg tshaj li 57 kj / mole vim lub dissociation ntawm lub tsis muaj zog acid / puag uas feem ntau endothermic
Yuav ua li cas koj nrhiav tau ib tug magnetic teb nrog ib tug compass?
Magnetic fields tso lub plotting compass ze ntawm cov hlau nplaum ntawm ib daim ntawv. kos cov kev taw qhia ntawm lub tshuab raj lub ntsiab lus. txav lub plotting compass mus rau ntau txoj haujlwm sib nqus hauv qhov chaw sib nqus, kos lub koob taw qhia txhua zaus. koom nrog cov ntsiab lus los qhia cov kab teb
Yuav ua li cas koj nrhiav tau qhov sib npaug ntawm ib kab uas muab ib tug point thiab ib tug parallel kab?
Qhov sib npaug ntawm kab hauv daim ntawv nqes hav-intercept yog y = 2x + 5. Qhov nqes hav ntawm parallelline yog tib yam: m = 2. Yog li, qhov sib npaug ntawm kab sib npaug yog y = 2x + a. Txhawm rau nrhiav ib qho, peb siv qhov tseeb tias kab yuav tsum dhau los ntawm qhov muab: 5 = (2) ⋅ (− 3) + a
Yuav ua li cas koj tsim ib tug sib npaug daim duab peb sab nrog ib tug compass?
Muab koj lub ntsuas ntsuas rau ntawm A thiab ntsuas qhov deb mus rau taw tes B. Hla ib qho arc ntawm qhov loj me saum toj no (lossis hauv qab) ntu. 2. Yog tsis hloov lub ncua sij hawm ntawm lub compass, tso lub compass point ntawm B thiab viav vias tib arc, intersecting nrog thawj arc
Yuav ua li cas koj ua ib tug zoo meej pentagon nrog ib tug compass?
Muab tus taw tes ntawm lub compass rau M thiab txuas ntxiv nws xaum kov A. Kos ib qho arc uas hla kab XO; peb yuav hu qhov kev sib tshuam no "R". Txav mus rau qhov taw tes ntawm lub compass mus rau A thiab txuas mus rau nws kom cov xaum tam sim no kov R. Lub vojvoog ntawm koj lub compass tam sim no sib npaug rau qhov ntev ntawm ob sab ntawm koj lub pentagram