15. Jika AP = 13 cm, PQ =15 cm, dan BQ = 4 cm, maka panjang AB adalah....
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Jawaban:
AB = 12 cm
Penjelasan dengan langkah-langkah:
GARIS SINGGUNG PERSEKUTUAN 2 LINGKARAN
AB = √(PQ² – (AP – BQ)²)
AB = √(15² – (13 – 4)²)
AB = √(225 – 81)
AB = √144
AB = 12 cm