Question

prisma memiliki alas brbentuk trapesium sama kaki dgn pnjang sisi sisi sejajarnya 8 dn 14 cm. serta pnjang kaki trapesium 10 cm. jika tinggi prisma 4 cm, luas permukaan prisma=

Answer 1

Alas prisma :  a= 8 cm , b = 14 cm , kaki trapesium =10 cm
1 kaki trapesium = 5 cm, jadi tinggi trapesium = 4 cm
T prisma = 4 cm
Lp = 2 La + Ka.T
=2.1/2.[8+14].4 + [8+14+5+5].4
=22.4 + 32.4
=88 + 128
=216 cm 2