A.45
B.60
C.90
D.105
tolong dijawab
B.60
C.90
D.105
tolong dijawab
Penjelasan dengan langkah-langkah:
L = ½ × ( a + b ) × t
L = ½ × ( 10 cm + 5 cm ) × 6 cm
L = ½ × 15 cm × 6 cm
L = 15 cm × 3 cm
L = 45 cm²
Penjelasan dengan langkah-langkah:
L = 1/2 × (jlh sisi sejajar) × t
L = 1/2 × (10 + 5) × 6
L = 1/2 × 15 × 6
L = 15 × 3
L = 45 cm²
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