jawab yah nomor 13, besok di kumpul
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Matematika
L = ½ × D1 × D2
L = ½ × 12 × 16
L = ½ × 192
L = 96 cm²
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Penjelasan dengan langkah-langkah:
a.) keliling
= √(12÷2)² + (16÷2)²
= √6² + 8²
= √36 + 64
= √100
= 10 cm
= 4s
= 4.10
= 40 cm
b. luas
= 1/2 × d1 × d2
= 1/2 × 12 × 16
= 6 × 16
= 96 cm