pole prostokąta = a*b
7mm=0.7 cm
Pp= 4 * 0.7
Pp=2,8 [cm²]
Odp.Pole tego prostokąta wynosi 2,8 cm²
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b=7mm
P=a*b
P=40mm*7mm=280mm²
b=7mm=0,7cm
P=a*b
P=4*0,7
P=2,8cm <do kwadratu>
pole prostokąta = a*b
7mm=0.7 cm
Pp= 4 * 0.7
Pp=2,8 [cm²]
Odp.Pole tego prostokąta wynosi 2,8 cm²