Question

Exercitiile va rog !!
Nu sunt atit de grele
Dau coroana!!!!
Va rooog!!!

Answer 1

[tex]1.) V_{C}=a^3= 27cm^3 \\ 2.)cubul are 12 muchii,deci \\ 12a=48;a=4cm \\ V=4^3=64cm^3 \\ A_{t}=6a^2 =6*16=96cm^2 \\ 3.) d_{c}=a \sqrt{3} ;2 \sqrt{3}=a \sqrt{3};a=2cm \\ V=8cm^3 \\ A_{t} =6*4=24cm^2 [/tex]