Question

Am si nevoie rapid !!

Answer 1

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

Answer 2

Răspuns: $\color{magenta}\Large \boxed{\bf V = 32~ litri}$

Explicație pas cu pas:

$\color{red}\Large\boxed{\bf V= Ab \cdot h}$

$\color{orangered}\Large\boxed{\bf Ab= \pi \cdot r^{2}}$

$\it~$

$\large \bf Ab= 400\pi ~cm$

$\large \bf h = \dfrac{80}{\pi}$

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

$\color{red}\Large \boxed{\bf V = 32000~cm^{3} = 32~dm^{3}=32~ litri}$

Varianta d)

Bafta multa!

==pav38==