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A= 5 1/4cm, B= 7cm
P=5¼cm *7cm=21/4 cm*7cm=(21/4*7)cm²=147/4cm²=36¾cm²
A= 18m B= 6m
P=18cm*6cm=108cm²
2)18x6=108m2
...i to juz wszystko.
:))
P=5 1/4cm * 7cm
P=36 3/4cm2
P=a * b
P=18m * 6m
P=108m2