17 Circle - Chord and Arc

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1. In a circle with centre O, seg PQ is a chord of length 7 cm. seg OA chord PQ, then find l(AP) 1) 3.5 cm 2) 14 cm 3) 1.4 cm 4) 7 cm

2. Radius of a circle with centre O is 10 cm. Find the length of the chord if the chord is at a distance of 6 cm from the centre 1) 10 2) 64 3) 24 4) 16