równoległobok ma boki 20m i 15,1/2m oblicz jego obwud
Ob = 2(a+b)
a=20
b=15.5
ob= 2 ( 20 +15.5) = 71
a=20m
b=15½m=15,5 m
O=2a+2b
O=2*20m+2*15,5m
O=40m+31m
O=71 m
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Ob = 2(a+b)
a=20
b=15.5
ob= 2 ( 20 +15.5) = 71
a=20m
b=15½m=15,5 m
O=2a+2b
O=2*20m+2*15,5m
O=40m+31m
O=71 m