Jawabanmu

Jawaban paling cerdas!
2014-04-27T11:25:43+07:00
K = 2 ( p+l )
180 = 2 (3n + 2n)
180 = 2(5n)
180/2 = 5n
90/5 = n
18 =n

panjang: 3n = 3.18 = 54
2 5 2
2014-04-27T11:37:02+07:00
2x(3+2) = 180
10x = 180
x = 18
panjang = 18 x 3 = 54
Semoga bermanfaat