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24 x 24 : 2 = 576 : 2 = 288 cm kwadratowych
zad. 3
a)
10 x 4 = 40 cm
10 x 40 : 2 = 200 cm kwadratowych
b)
10 + 4 = 14 cm
10x 14 : 2 = 140 : 2= 70 cm kwadratowych
P R O S Z E !!!!
a(pierwiastków z 2)=24
a=12(pierwiastków z 2)
P=a^2
P=[12(p.z 2)]^2=288
Zad. 3
a)
d1=10
d2=10*4=40
P=(d1*d2)/2
P=(10*40)/2
P=400/2
P=200
b)
d1=10
d2=10+4=14
P=(10*14)/2
P=140/2
P=70