a=5
b=7
c=9
Pc=2Pp+Pb
Pc=2*a*b+2*a*c+2*b*c
Pc=2*5*7+2*5*9+2*7*9
Pc=70+90+126
Pc=286 j²
liczę na naj ;D
P1= 2 * (5cm*7cm)= 70cm2
P2= 2 * ( 7cm * 9cm)=126cm2
P3= 2* (5cm * 9cm)=90 cm2
Pc= 70cm2 + 126cm2 + 90cm2 = 286cm2
Odp.: Pole całkowite wynosi 286cm2.
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a=5
b=7
c=9
Pc=2Pp+Pb
Pc=2*a*b+2*a*c+2*b*c
Pc=2*5*7+2*5*9+2*7*9
Pc=70+90+126
Pc=286 j²
liczę na naj ;D
P1= 2 * (5cm*7cm)= 70cm2
P2= 2 * ( 7cm * 9cm)=126cm2
P3= 2* (5cm * 9cm)=90 cm2
Pc= 70cm2 + 126cm2 + 90cm2 = 286cm2
Odp.: Pole całkowite wynosi 286cm2.