Kupeza kuchuluka kwa prism: chilinganizo ndi ntchito

M'buku lino, tiwona momwe mungapezere voliyumu ya prism ndikusanthula zitsanzo za kuthetsa mavuto kuti mukonze zinthu.

Njira yowerengera kuchuluka kwa prism

Voliyumu ya prism ndi yofanana ndi gawo la maziko ake ndi kutalika kwake.

V=S_waukulu ⋅ h

• S_waukulu - malo oyambira, mwachitsanzo, kwa ife, quadrilateral ABCD or EFGH (ofanana wina ndi mzake);
• h ndiye kutalika kwa prism.

Njira yomwe ili pamwambapa ndi yoyenera mitundu iyi ya ma prism: 

• zowongoka - nthiti zam'mbali ndi perpendicular kumunsi;
• zolondola - prism yolunjika, yomwe maziko ake ndi polygon wokhazikika;
• zopendekera - nthiti zam'mbali zili pamakona potengera maziko.

Zitsanzo za ntchito

Ntchito 1

Pezani voliyumu ya prism ngati imadziwika kuti malo ake ndi 14 cm²ndipo kutalika kwake ndi 6 cm.

Kusankha:

Timalowetsa zomwe zimadziwika mu formula ndikupeza:

V = 14cm² ⋅ 6cm = 84cm³.

Ntchito 2

Voliyumu ya prism ndi 106 cm³. Pezani kutalika kwake ngati zimadziwika kuti malo apansi ndi 10 cm².

Kusankha:

Kuchokera pamapangidwe owerengera voliyumu, ndiye kuti kutalika kwake ndi kofanana ndi voliyumu yogawidwa ndi dera la uXNUMXbuXNUMXbmaziko:

h = V / S_waukulu = 106 masentimita³ / 10 masentimita² = 10,6 masentimita.