Question

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Answer 1

a) CN=DN rezulta CD=2*CN
BC=CN rezulta CD=2*BC
L=2*l
P=2(L+l)
2(2*l+l)=2160 m
3*l = 1080 m
l=360 m
L=2*360=720 m
AB=720 m

b) A = L*l = 720*360 = 259200 m^2

c) A(BMDN) = A(ABCD) - A(/\ADM) - A(/\BCN)
A(/\ADM) = AD*AM/2 = 360*AM/2 = 180*AM
AM = 1/3 din AB = AB/3 = 720/3 = 240 m
A(/\ADM) = 180*240 = 43200 m^2
A(/\BCN) = BC*CN = 360*360 = 129600 m^2
A(BMDN) = 259200-43200-129600 = 86400 m^2
A(loc) = 5 m^2
Locuri sunt 86400/5 = 17280