Penyelesaian :
a = 12 cm
b = 18 cm
t = 10 cm
L = ½ × t ( a + b )
L = ½ × 10 × ( 12 + 18 )
L = ½ × 10 × 30
L = 5 × 30
L = 150 cm²
Penjelasan dengan langkah-langkah:
L = ½ × ( a + b ) × t
L = ½ × ( 18 cm + 12 cm ) × 10 cm
L = ½ × 30 cm × 10 cm
L = 30 cm × 5 cm
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Penyelesaian :
a = 12 cm
b = 18 cm
t = 10 cm
L = ½ × t ( a + b )
L = ½ × 10 × ( 12 + 18 )
L = ½ × 10 × 30
L = 5 × 30
L = 150 cm²
Penjelasan dengan langkah-langkah:
L = ½ × ( a + b ) × t
L = ½ × ( 18 cm + 12 cm ) × 10 cm
L = ½ × 30 cm × 10 cm
L = 30 cm × 5 cm
L = 150 cm²