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=p x l
=62 x 58
=3596 cm
L ps.pnjng kcl :
= p x l
= 30 x 48
= 1440 cm
L 1/2 ling :
3,14 x 29 x 29
2641,44 cm
L totl = 3596 - 1440 + 2641,44
= 4797,44 cm