Tolong ya temen2 Pake caranya

Lingkaran

K juring besar = 30°/360° x K lingkaran
= 1/12 x 2 x π x r
= 1/6 x 3,14 x (18+6)
= 1/6 x 3,14 x 24
= 3,14 x 4
= 12,56 cm

K juring kecil = 30°/360° x K lingkaran
= 1/12 x 2 x π x r
= 1/6 x 3,14 x 18
= 3,14 x 3
= 9,42 cm

K arsiran = 12,56 + 9,42 + 2 x 6
= 21,98 + 12
= 33,98 cm (D).

*semoga membantu. sukses selalu ^_^