Răspunsuri

2014-04-02T17:31:40+03:00
Perim=4l
Aria=l^2

4a/4b=1.2
a/b=1.2
a/b=12/10
10a=12b /:2
5a=6b
a=6b/5

a^2/b^2=

36b^2/25/b^2=
36/25

fractie
UITE-TE LA PENULTIMUL RAND
ESTE 36 B ORI DOI SUPRA 25 SUPRA B ORI 2?
aia e putere ^
a la a doua