Penyelesaian Dik : d1 = 10 cm, d2 = 12 cm dan s = 7 cm Dit : luas dan keliling? Jawab : 1 L = × × 1 2 2 L = × 10 × 12 1 2 1 L = × 120 2 L = 60 cm K = 4 x s K = 4 x 7 K = 28 cm 5. Layang-Layang 10