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l=14 cm
r=14/2=7 cm
t=10-7=3 cm
Luas permukaan benda
=Luas tabung + Luas ½ bola
=πr²+2πrt + 2πr²
=πr(r+2t+2r)
=πr(3r+2t)
=22/7 × 7 (3×7 + 2×3)
=22(21+6)
=22×27
=594 cm²