Odpowiedzi

2010-04-11T16:25:53+02:00
(2r)^2 = (1m)^2 + (2,4m)^2
(2r)^2 = 1 + 5,76
(2r)^2 = 6,76
2r = 2,6
l = 2*pi*r = 2,6pi cm
7 3 7
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2010-04-11T16:27:35+02:00
A²+b²=c²
(1m)²+(2,4m)²=c²
1m²+5,76m²=c²
c=√6,76m²
c=2,6m

d=2,6m
r=1,3m
l=2πr
l=2π*1,3m
l=2,6m
14 3 14
2010-04-11T16:29:14+02:00
A²+b²=c²
(1m)²+(2,4m)²=c²
1m²+5,76m²=c²
c=√6,76m²
c=2,6m

d=2,6m
r=1,3m
l=2πr
l=2π*1,3m
l=2,6m

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