kak tolong jawab no10 plissssss...

L= 1/2 (a+b) × t
  = 1/2 (10+6) × 7
  = 1/2 (16) × 7
  = 8 × 7
  = 56
jadi, luas bangun ABEF = 56cm²
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maafjikakurang tepat:)