Jawab:
1.) Luas trapesium = ½ x (alas a + alas b) x tinggi
L trapesium = ½ x (20+{20+9+9}) x 12
L = ½ x (20+38) x 12
L = ½ x (58) x 12
L = 348 cm² (C.)
2.) Luas segitiga = ½ x alas x tinggi
L segitiga = ½ x 28 x 36
L = 14 x 36
L = 504 cm² (B.)
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Jawab:
1.) Luas trapesium = ½ x (alas a + alas b) x tinggi
L trapesium = ½ x (20+{20+9+9}) x 12
L = ½ x (20+38) x 12
L = ½ x (58) x 12
L = 348 cm² (C.)
2.) Luas segitiga = ½ x alas x tinggi
L segitiga = ½ x 28 x 36
L = 14 x 36
L = 504 cm² (B.)