1. 4 diagonale
2. radical 6
3. 3×3×6=64 cm²
4. 45°
5. V=4³=64cm³
6. aflam mai intai diagonala bazei(dreptunghiului) cu T.P.
d²=l²+L²
d²=9+16
d=5cm
tg(D,d)=h/d=6/5
deci tg=6/5
7.V=Ab×h
h=V/Ab
h=48/16
h=3 cm
8. 45°
9. A=Al+2Ab
A=2(Lh+Ll+hl)
A=2(3×5+3×7+5×7)
A=2(15+21+35)
A=2×71
A=142 cm²
