Tolong bantu y...Jngn asal2an lohhhhh

p = Panjang lilitan
d = 42 cm

p = 3d +  πd
p = 2(42) + (22/7 x 42)
p = 84 + 132
p = 216 cm

p = d luar lingkaran + keliling
p = 3d + πd
p = 2(42) + 22/7 x 42
p = 84 + 132
p = 216 cm