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= 22.7. 14 x 10 + 22/7.7.7
= 440 + 154
= 594
karena tanpa tutup jadi
Luas permukaan = ( x d x t) + ( r²)
=( 22/7 x 14 x 10 ) + (22/7 x 7²)
= 440 + 154
= 594 cm²