Jawabanmu

2014-05-01T16:23:44+07:00
2014-05-01T16:26:42+07:00
Lp = (luas alas x 2) + (keliling alas x tinggi prisma)
= ((1/2 x 3cm x 4 cm) 2) + (3cm + 4cm + 5cm) x 8cm)
= (6 x 2) + (12 x 8cm)
= 12 + 96cm
= 108cm²
jawaban B

maaf klo salah