Jawabanmu

2014-04-03T18:19:55+07:00
Lp = 2 (pl + pt + lt)
376 = 2 (60 + 10t + 6t)
376 = 120 + 20t + 12t
376 - 120 = 32t
256 = 32t
t = 256 / 32
t = 8 cm
2014-04-03T18:25:17+07:00
Dik :
L.P = 376 cm²
P = 10
L = 6

Dit :
t =....?

Penyelesaian :
L . P = 2 (p x l + p x t + l x t)
 376  = 2 (10 x 6 + 10 x t + 6 x t)
 376  = 2 ( 60 + 10t + 6t )
 376  = 2 ( 60 + 16t )
 376  = 120 + 32t
 376 - 120 = 32t
 256  = 32t
  t     = 256/32
  t     = 8 cm