Question

Daca o piscina are are inaltimea de 84 cm si diametrul de 366 cm cati metri cubi de apa intra in ea

Answer 1

8,8375 m3   raza  = 3,66 / 2 = 1,83 m,    h = 0.84 metri,                                                    V = pi x raza cilindrului 2 x inaltimea = 3.14x1.83x 1.83 x0,84 =8,8375

Answer 2

     
$Se\;da: \\ h = 84\;cm \; \;\; ( inaltimea ) \\ D=366\;cm\;\;\;(diametru) \\ Se\;cere: \\ V=?\;\;\;\;\;(volumul\;in\;m^3) \\ \\ Rezolvare: \\ R = \frac{D}{2}= \frac{366}{2}=183\;cm \\ \\ V=\pi R^2*h = \pi *183^2*84=\pi *33489*84= \\ = \pi *2813076\;cm^3=2,813076\,\pi\;m^3 = \\ =2,813076*3,14 = 8,83305864\;m^3 = aprox.\;\; \boxed{8,83\;m^3\;de\;apa}$