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l.permukaan=nr(r+s)
=22/7x7(7+25)
=22x32
=704
s = √7² + 24²
s = √49 + 576
s = 25 cm
Lp = πr (r + s)
Lp = 22/7 x 7 ( 7 + 25)
Lp = 22 x 32
Lp = 704 cm²