di jwb ya plis mksh.. Penting
Matematika
Olivia2805
Pertanyaan
di jwb ya plis mksh.. Penting
1 Jawaban
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1. Jawaban Ronaldoongki7
l² = p² - (R - r)²
16² = 20² - (15 - r)²
256 = 400 - (15 - r)²
-144 = -(15 - r)² [min-nya coret]
144 = (15 - r)²
12 = 15 - r
r = 3 cm (a)