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L2=kerucut
L1=πr²+2πr.t
=3,14.3²+2.3,14.3.9
=28,26+169,56
=197,82 cm²
L2=πrs
=3,14.3.5
=47,1
L.tot=197,82+47,1=244,92 cm²
=2,4492 dm²
maaf klo salah