Odpowiedzi

2009-11-26T20:29:22+01:00
A)
64 : 4 = 16
a = 16
P = a*a
P = 16*16 = 256 cm ²

b)√64 = 8
a = 8
Ob = 4a
Ob = 4 * 8
Ob = 32 cm
2009-11-26T20:30:30+01:00
A)
O=64cm
O=4a
64=4a/:4
a=16cm
P=16cm²
P=256cm2

b)
P=64
P=a²
64=a²/√
a=8

O=4*8=32