Class 9 Maths Practice Test: Circles - Perpendicular from the Centre to a Chord — Flashcards | Class 9 Math | FatSkills

Class 9 Maths Practice Test: Circles - Perpendicular from the Centre to a Chord — Flashcards

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The perpendicular from the centre of a circle to a chord bisects the chord. The theorem states that if O is the centre and PQ is the chord, then the perpendicular OR from the centre O to the chord PQ bisects the chord PQ (i.e.) PR = RQ.

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What is the value of AC if radius of circle is 5cm and OB = 3cm?
8cm
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