tolong ya kak, butuh bgt buat besok! : ) dengan cara caranya ya!

Tb²/Rb³ = Tm²/Rm³
(1)²/(150.10⁶)³ = Tm²/(60.10⁶)³
1/3375.10²¹ = Tm²/216.10²¹
Tm² = 216/3375 ÷ 27 (sederhanakan)
Tm = √8/125
Tm = 0,25 tahun

Ta²/Ra³ = Tb²/Rb³
Ta²/(4Rb)³ = (2)²/Rb³
Ta²/64Rb³ = 4/Rb³
Ta² = 64/4
Ta = √16
Ta = 4 tahun

Tb²/Rb³ = Tv²/Rv³
(1)²/(1)³ = (0,62)²/Rv³
Rv³ = (0,62)²
Rv³ = 0,3844
Rv = ∛0,3844
Rv = 0,7271 sa