Jawabanmu

2014-06-04T16:04:27+07:00
Luas permukaan
= 2.pl + 2.pt + 2.lt
=2(10.8) + 2(10.15) + 2(8.15)
=2(80) + 2(150) + 2(120)
=160 + 300 + 240
= 700 cm²

2014-06-04T16:06:53+07:00
L = 2luas alas + Keliling alas x tinggi
= 2 (10 x 8) + 2(10+8) x 15
= 2 x 80 + 36 x 15
= 160 + 540
= 700 cm²