Question

ex.10 si 11 dau coroana este urgent

Answer 1

Sper ca a fost de ajutor

Answer 2

10)
a)P=12m
P=4•l=>l=12/4=>l=3
A=l²
A=3²
A=9m²

b)P=1m
P=4•l=>l=1/4=>l=0,25
A=l²
A=0,25²
A=0,0625m²

c)P=36cm
P=4•l=>l=36/4=>l=9
9 cm=0,09m
A=l²
A=0,09²
A²=0,0081m²

d)P=14cm
P=4•l=>l=14/4=>l=3,5
3,5cm=0,35m
A=l²
A=0,35²
A=0,1225m²



11)
a)A=9m²
l=3m
P=4•l
P=4•3
P=12m

b)
A=0,36m²
l=0,6m
P=4•l
P=4•0,6
P=2,4m

c)A=16ha
16ha=1600m²
l=40
P=4•l
P=4•40
P=160m

d)
A=25ari
25 ari= 2500m²
l=50m
P=4•l
P=4•50
P=120m