The length of the radius of a circle with centre O is 5 cm and the length of the chord AB is 8 cm. The distance of the chord AB from the point O is
A) 2 cm B) 3 cm C) 4 cm D) 15 cm
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Answer:
Right Answer is: B
Ox is the distance of the chord from the center of the circle and it forms the perpendicular of the right angled triangle OXA formed by the chord AB of length 8 cm. ∠OXA = 90° and OA = 5 and AX = 8/2 = 4 cm. Hence distance of the chord from the center is 3 cm.
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