3 Txoj Hauv Kev Los Lej Cheeb Tsam ntawm Pob Zeb Diamond

Cov txheej txheem:

3 Txoj Hauv Kev Los Lej Cheeb Tsam ntawm Pob Zeb Diamond
3 Txoj Hauv Kev Los Lej Cheeb Tsam ntawm Pob Zeb Diamond

Video: 3 Txoj Hauv Kev Los Lej Cheeb Tsam ntawm Pob Zeb Diamond

Video: 3 Txoj Hauv Kev Los Lej Cheeb Tsam ntawm Pob Zeb Diamond
Video: Introduction to measured data, instrumentation & sensors (Aitor Erkoreka, UPV-EHU, ES) 2024, Lub peb hlis ntuj
Anonim

Pob zeb diamond yog plaub lub duab plaub sib npaug nrog plaub sab sib npaug. Muaj peb tus qauv siv los nrhiav thaj tsam ntawm pob zeb diamond. Yog tias koj xav ntsib lawv, ua raws Cov Kauj Ruam no.

cov kauj ruam

Txoj Kev 1 ntawm 3: Siv Diagonals

Xam thaj tsam ntawm Rhombus Kauj Ruam 1
Xam thaj tsam ntawm Rhombus Kauj Ruam 1

Kauj Ruam 1. Nrhiav qhov ntev ntawm txhua kab pheeb ces kaum

Cov kab pheeb ces kaum ntawm lub pob zeb diamond yog cov kab uas txuas cov kab rov tav (cov ces kaum) ntawm cov duab. Lawv yog perpendicular thiab ua plaub txoj cai peb tog raws lawv txoj kev sib tshuam.

Wb hais tias kab pheeb ces kaum yog 6 cm thiab 8 cm ntev

Xam thaj tsam ntawm Rhombus Kauj Ruam 2
Xam thaj tsam ntawm Rhombus Kauj Ruam 2

Kauj Ruam 2. Muab qhov ntev ntawm kab pheeb ces kaum

Tsuas yog sau cov kev ntsuas sib npaug rau qhov ntev ntawm txhua kab pheeb ces kaum thiab muab lawv sib npaug. Hauv qhov no, 6 cm × 8 cm = 48 cm2. Tsis txhob hnov qab txog cov chav nyob raws li peb tab tom ua haujlwm nrog cov chav nyob.

Xam thaj tsam ntawm Rhombus Kauj Ruam 3
Xam thaj tsam ntawm Rhombus Kauj Ruam 3

Kauj Ruam 3. Muab cov txiaj ntsig faib ua 2

Txij li 6 cm × 8 cm = 48 cm2, tsuas yog faib qhov txiaj ntsig los ntawm 2.48 cm2 / 2 = 24 cm ntev2. Yog li ntawd, thaj tsam ntawm pob zeb diamond sib npaug li 24 cm2.

Txoj Kev 2 ntawm 3: Siv Lub Hauv Paus thiab Qhov Siab

Xam thaj tsam ntawm Rhombus Kauj Ruam 4
Xam thaj tsam ntawm Rhombus Kauj Ruam 4

Kauj Ruam 1. Tshawb xyuas lub hauv paus ntev thiab qhov siab

Koj tuaj yeem xav txog cov txheej txheem no ua kom sib npaug sib npaug qhov siab ntawm ib sab ntawm pob zeb diamond. Cia peb hais tias qhov siab no sib npaug 7 cm thiab lub hauv paus sib npaug 10 cm.

Xam thaj tsam ntawm Rhombus Kauj Ruam 5
Xam thaj tsam ntawm Rhombus Kauj Ruam 5

Kauj Ruam 2. Muab lub hauv paus thiab qhov siab

Thaum koj paub lub hauv paus thiab qhov siab ntawm lub pob zeb diamond, koj tsuas yog yuav tsum tau muab lawv txhawm rau nrhiav thaj chaw zoo nkauj. Yog li, 10 cm × 7 cm = 70 cm2. Vim li ntawd, thaj tsam pob zeb diamond sib npaug li 70 cm2.

Txoj Kev 3 ntawm 3: Siv Trigonometry

Xam thaj tsam ntawm Rhombus Kauj Ruam 6
Xam thaj tsam ntawm Rhombus Kauj Ruam 6

Kauj Ruam 1. Txiav qhov ntsuas ntawm ob sab

Pob zeb diamond muaj plaub sab sib luag, yog li nws tsis muaj teeb meem twg koj xaiv. Cia peb hais tias sab muaj qhov ntsuas sib npaug li 2 cm. 2 cm × 2 cm = 4 cm2.

Xam thaj tsam ntawm Rhombus Kauj Ruam 7
Xam thaj tsam ntawm Rhombus Kauj Ruam 7

Kauj Ruam 2. Muab cov txiaj ntsig los ntawm sine ntawm ib qho ntawm cov ces kaum

Txawm hais tias koj xaiv sab twg, cia peb hais ib qho ntawm cov ces kaum sib npaug li 33 degrees. Tsuas yog sib npaug sine (33) los ntawm 4 cm2 kom tau txais thaj tsam pob zeb diamond. (2 cm)2 × sine (33) = 4 cm2 × 1 = 4 cm2. Lub pob zeb diamond thaj tsam yog 4 cm2.

Pom zoo: