👤

Am si nevoie rapid !!

Am Si Nevoie Rapid class=

Răspuns :

V= Ab•h

Ab=πR²

Ab=400π cm

V=400π•80/π

simplificam π pe diagonala

V= 400•80

V=32000 cm³

V=32 dm³=32 litri = d

Răspuns: [tex]\color{magenta}\Large \boxed{\bf V = 32~ litri}[/tex]

Explicație pas cu pas:

[tex]\color{red}\Large\boxed{\bf V= Ab \cdot h}[/tex]

[tex]\color{orangered}\Large\boxed{\bf Ab= \pi \cdot r^{2}}[/tex]

[tex]\it~[/tex]

[tex]\large \bf Ab= 400\pi ~cm[/tex]

[tex]\large \bf h = \dfrac{80}{\pi}[/tex]

[tex]\large \bf V = 400\pi \cdot \dfrac{80}{\pi }=400\not\pi \cdot \dfrac{80}{\not\pi }\implies\boxed{\bf V = 32000~cm^{3}}[/tex]

[tex]\color{red}\Large \boxed{\bf V = 32000~cm^{3} = 32~dm^{3}=32~ litri}[/tex]

Varianta d)

Bafta multa!

==pav38==