Basic Properties ntawm prism

Hauv kev tshaj tawm no, peb yuav xav txog cov khoom tseem ceeb ntawm prism (hais txog lub hauv paus, sab ntug, ntsej muag thiab qhov siab), nrog rau lawv nrog cov duab kos kom pom kev zoo dua ntawm cov ntaub ntawv nthuav tawm.

Nco ntsoov: peb tshuaj xyuas lub ntsiab lus ntawm prism, nws cov ntsiab lus tseem ceeb, ntau yam thiab kev xaiv hla ntu hauv, yog li peb yuav tsis nyob ntawm lawv hauv kev nthuav dav ntawm no.

Prism Properties

Peb yuav xav txog cov khoom siv piv txwv ntawm hexagonal ncaj prism, tab sis lawv muaj feem xyuam rau lwm hom duab.

Khoom Muaj Khoom 1

Lub prism muaj ob lub hauv paus sib npaug, uas yog polygons.

Cov. ABCDEF = A₁B₁C₁D₁E₁F₁

Khoom Muaj Khoom 2

Lub ntsej muag sab ntawm txhua qhov prism yog parallelograms.

Hauv daim duab saum toj no nws yog: AA₁B₁B, BB₁C₁C, CC₁D₁D, DD₁E₁E, EE₁F₁F и AA₁F₁F.

Khoom Muaj Khoom 3

Txhua sab ntug ntawm lub prism yog sib npaug thiab sib npaug.

• AA₁ = IB₁ = CC₁ = DD tau₁ = EE₁ = FF₁
• AA₁ || BB₁ || CC₁ || DD₁ || EE₁ || FF₁

Khoom Muaj Khoom 4

Lub perpendicular seem ntawm lub prism yog nyob ntawm txoj cai kaum rau txhua sab ntsej muag thiab cov npoo ntawm daim duab.

Khoom Muaj Khoom 5

Qhov siab (h) ntawm ib qho inclined prism yog ib txwm tsawg dua qhov ntev ntawm nws sab ntug. Thiab qhov siab ntawm ib daim duab ncaj yog sib npaug rau nws ntug.

• Ntawm daim duab. sab laug: h = UA₁
• Hauv daim duab. rooj plaub: h< ua₁