Diperoleh r2= 2r1 dan t2 = 2t1,
Sehingga,
L2 = 2πr2(r2 + t2)
L2 = 2π(2r1)(2r1 + 2t2)
L2 = 4 × 2πr1(r1 + t1)
L2 = 4L1
L2 = 800π cm2
c) Jika r1/r2 = t1/t2 = k
14a) V1/V2 = k3
Diperoleh r2= 2r1 dan t2 = 2t1,
Sehingga,
L2 = 2πr2(r2 + t2)
L2 = 2π(2r1)(2r1 + 2t2)
L2 = 4 × 2πr1(r1 + t1)
L2 = 4L1
L2 = 800π cm2
c) Jika r1/r2 = t1/t2 = k
14a) V1/V2 = k3
Editor: Annisa Fadilla
Sumber: buku.kemdikbud.go.id