Penjelasan:
L = 1/2 × d1 × d2
L = 1/2 × 20 × 17
L = 10 × 17
L = 170 cm²
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Penjelasan:
L = 1/2 × d1 × d2
L = 1/2 × 20 × 17
L = 10 × 17
L = 170 cm²