a)150
b)960
c)192
d)108
Chyba tak nie jestem pewna
a)Pb= 20x5+20x5+20x6= 320 (cm2)
b)Pb= 10x20+6x20+4x20+4x20= 200+120+160= 480 (cm2)
c) (12)2+(16)2= x2
144 + 256 = x2
x2 = 400
x= pierwiastek z 400 = 20
Pb= (20x20)x4=1600 (cm2)
Pp= (12x16)/2=96 (cm2)
Pc= 1600+96 =1696 (cm2)
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a)150
b)960
c)192
d)108
Chyba tak nie jestem pewna
a)Pb= 20x5+20x5+20x6= 320 (cm2)
b)Pb= 10x20+6x20+4x20+4x20= 200+120+160= 480 (cm2)
c) (12)2+(16)2= x2
144 + 256 = x2
x2 = 400
x= pierwiastek z 400 = 20
Pb= (20x20)x4=1600 (cm2)
Pp= (12x16)/2=96 (cm2)
Pc= 1600+96 =1696 (cm2)