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=
=15 cm
jadi garis singgung persekutuan dalamnya adalah 15 cm (pilihan d)
semoga membantu
d² = 17² - (5 + 3)²
d² = 289 - (8)²
d² = 289 - 64
d² = 225
d = √225
d = 15 cm
Keterangan :
d = garis singgung persekutuan dalam
p = jarak pusatnya
r1 dan r2 = jari-jari