Question

1 Calculați aniile următoarelor figuri geometrice: D 5 cm 8 cm 6 cm Rezolvare: R C 8 cm 5 cm H E 6 cm G 2 cm 3 cm 9 cm 12 cm 10 cm K M B 4 cm 4 cm 8 cm N​

Answer 1

Răspuns:

a. 8×5/2=20cm²

b. 8×6/2=24cm²

c. 9×12/2=54cm²

d. h=l×radical3/2

4×2radical3/2=4radical3cm²

e. 6×6/2=18cm²

f. 5×2/2=5cm²

g. 10×3/2=15cm²

h. c=8radical2/2=4radical2

4radical2×4radical2=32cm²