Question

Rog punctul 2,Mersi din timp

Answer 1

Toate muchiile sunt egale => 6*muchia=54=>muchia=9 cm
Aria totala =l^2*radical(3)=9^2*radical(3)=18radical(3) cm^2
Inaltimea=(muchia*radical(6))/3=9*radica(6)/3=3*radical(6)
Volumul tetraedrului mare=(muchia^3*radica(2))/12=729*radical(2)/12
Volumul unui tetraedru mic=27*radical(2)/12
Nr. piese=(729*radical(2)/12)/(27*radical(2)/12)=729/27=27