k² = 8
k = √8
t₁/t₂ = k
t₁/t₂ = √8
12/√8 = t₂
T₂ = 12/√. √8/√8
= 12 √8/8
= 12 √4.2
________
8
= 12.2√2
______
8
= 3√2 cm
Mencari r₂ = 2πr₂ (t₂ + r₂) = L₂
2πr₂ (3√2 +r₂) = 12π
k² = 8
k = √8
t₁/t₂ = k
t₁/t₂ = √8
12/√8 = t₂
T₂ = 12/√. √8/√8
= 12 √8/8
= 12 √4.2
________
8
= 12.2√2
______
8
= 3√2 cm
Mencari r₂ = 2πr₂ (t₂ + r₂) = L₂
2πr₂ (3√2 +r₂) = 12π
Editor: Fajar Sidik Nur Cahyo
Sumber: buku.kemdikbud.go.id