Răspunsuri

2014-04-25T09:00:31+03:00
L cerc = 2π R
a) L cerc = 2π x 4 = 8π cm
b) L cerc = 2π x 0,(4) = 2π x 4/9 = 8/9 π cm
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2014-04-25T09:44:25+03:00