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2. P = 1 P = a*a*sinα
1 = 3sinα
sin α = 1/3 = 0,3
19, 20 stopnii
3.
P = πr²
32π = πr²
32=r²
r = √32
r = 4√2
P=5²√3/4=25√3/4=6,25√3
2)nie wiem
3)P=πr²
32π=πr² /:π
32=r²
√32=r²
√16*√2=4√2=r
L=2πr
L=2*π*4√2=8√2π