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K = 2πr
44 = 2 x 22/7 x r
44 = 44/7 x r
r = 44 x 7/44
r = 7 cm
Mencari garis pelukis
LP = πrs
550 = 22/7 x 7 x s
550 = 22 x s
s = 550/22
s = 25 cm
maka panjang garis pelukis kerucut adalah 25 cm
44 = 22/7 x 2 x r
r = 7 cm
luas selimut = π x r x s
550 = 22/7 x 7 x s
s = 25 cm
panjang garis pelukis adalah 25 cm