tolong yah plisssss..........

p = 13 dm
l = 5 dm

V = 390
p x l x t = 390 dm³
13 x 5 x t = 390
65 x t = 390
t = 390/65
t = 6 dm

Tinggi=V:(PxL)
=390:(13x5)
=390:65
=6 dm
Semoga membantu