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Matematika
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Pertanyaan
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1 Jawaban
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1. Jawaban Anonyme
jawab
pitagoras
AB²= BC²+CD²+DE²+EA²
AB² = 12²+9²+ 20²+ 60²
AB² = 4.225
AB = 65
BE² = BC²+ CD²+DE²
BE² = 12² + 9² + 20²
BE² = 625
BE = 25
BD² = BC²+CD²
BD² = 12² + 9² = 225
BD = 15