Răspunsuri

2014-04-16T20:40:39+03:00
A) A=64cm²
b)A=13:4x13:4=6.5cm²
c)A=2.05x2.05=4.2025cm²
d)A=7.(3)²=53.(7)cm²

A=l²
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2014-04-16T20:41:34+03:00
A) A=l²   A=8²=64

b)3 intregi 1/4=  13/4     A=(13/4)²=169/16

c)A=(2,05)²=4,2025

d) 7,(3)= 7 intregi  3/9=  7 intregi 1/3=22/3     A=484/9
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