Sunday 26 August 2012

soal ke-4


Diket : AB = 24 cm
                   CD = 16 cm 
       CG = 22 cm
  Keliling alas = AB+ BC + AC
               = 24 + 20 + 20
               = 64 cm


Luas permukaan prisma  = (2 x luas alas) + (keliling alas x tinggi)
                             = (2 x 192) + (64 x 22)
                             = 384 + 1408
                             = 1792 cm2

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