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=2.3,14.10,5
=65,94
L=π.r²
=3,14.10,5²
=346,185
b)k=2.π.r
=2.22/7.21
=44.3
=132
L=π.r²
=22/7.21.21
=66×21
=1281
c) π=3,14 r=25
d) π=3,14 r=31,5
sisanya kerjain sendiri ya...
π dan r diatas
#semoga bermanfaat
kayak diatas juga caranya gk beda
paling yg beda jawabannya