Garis singgung (SR) = 24 cm
Jarak kedua titik pusat (PQ) = 30 cm
Jari-jari lingkaran besar (PS) = 14 cm
Jari-jari lingkaran kecil (QR)
SR² = PQ² - (PS + QR)²
24² = 30² - (14 + QR)²
576 = 900 - (14 + QR)²
(14 + QR)² = 900 - 576
(14 + QR)² = 324
14 + QR = 18
QR = 18 - 14
QR = 4 cm
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Garis singgung (SR) = 24 cm
Jarak kedua titik pusat (PQ) = 30 cm
Jari-jari lingkaran besar (PS) = 14 cm
Jari-jari lingkaran kecil (QR)
SR² = PQ² - (PS + QR)²
24² = 30² - (14 + QR)²
576 = 900 - (14 + QR)²
(14 + QR)² = 900 - 576
(14 + QR)² = 324
14 + QR = 18
QR = 18 - 14
QR = 4 cm