Question

Calculati aria si perimetrul nr:
a)1.22m(latime) si 3.52m(Lungime)
b)3.40m(l) si 4.19 m(L)
c)5.00m(l) si 4.30m(L)
d)3.67m(l) si 3.40m(L)
c)1.80(l) si 1.61(l)(toate sunt patrate)
Va rog frumos de tot
Si 2-3-4 sunt de ajuns
Dau coroana,orice

Answer 1

a) A=L×l     P=2(L+l)
A=3,52×1,22=4,2944 m²
P=2(3,52+1,22)=2×4,74=9,48 m
b)  A=L×l     P=2(L+l)
A=4,19×3,4=14,246 m²
P=2(4,19+3,4)=2×7,59=15,18 m
c) A=L×l     P=2(L+l)
A=4,3×5=21,5 m²
P=2(4,3+5)=2×9,3=18,6 m
d)  A=L×l     P=2(L+l)
A=3,4×3,67=12,478 m²
P=2(3,4+3,67)=2×7,07=14,14 m
e) A=l²
A=1,8²=3,24
P=4×l
P=4×1,8=7,2
A=1,61²=2,5921
P=4×1,61=6,44