oblicz obwod prostokata gdy a ma 2.1/2 b ma 3.1/2 prosze o pomoc z gory dziekuje
obw = 2.1/2 + 2.1/2 + 3.1/2 + 3.1/2 = 12
a= 2 1/2
b= 3 1/2
O= 2*a+2*b
O= 2*2 1/2+ 2* 3 1/2
O=2* 5/2+2*7/2
O=5+7
O=12
Obwód wynosi 12.
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obw = 2.1/2 + 2.1/2 + 3.1/2 + 3.1/2 = 12
a= 2 1/2
b= 3 1/2
O= 2*a+2*b
O= 2*2 1/2+ 2* 3 1/2
O=2* 5/2+2*7/2
O=5+7
O=12
Obwód wynosi 12.