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Can someone help me solve this problem?

Can someone help me solve this problem?-example-1
User Hudi
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If О is the center of a circle then:

OA = OB = OC = OD [radii]

AB = AH + HB = 15 + 15 = 30 ⇒ AB = CD

So
ΔAOB ≅ ΔCOD [SSS rule] ⇒ x = OH = 16 units.

Can someone help me solve this problem?-example-1
User Quaternion
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