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b)24*360= 8640stopni
c)360/4=90stopni
d)360/4*3= 270stopni
L=2πr
L=2π×8
L=16π (cm)
a)
L=16π (cm)
b)
24×16π
L=384π (cm)
c)
1/4×16π
L=4π (cm)
d)
3/4×16π
L=12π (cm)