Question

ce puteti va rog frumos repede ​

Answer 1

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